How To Thicken Lemon Curd for Cake Pie Filling – Tips and Tricks

Have you ever tasted lemon curd and wondered what makes this creamy, tangy goodness? If so, you’re in luck! In this blog article, we’ll explore all things lemon curd. We’ll cover the basics of what it is and how to make it thicker for use as a filling in cakes and pies. From there, we’ll dive into some basic tips to thicken lemon curd along with advanced techniques for those looking to take their baking skills up a notch. Additionally, we’ll troubleshoot common issues that may arise when working with lemon curd and reveal creative ways to put your leftover batches to good use.

What is Lemon Curd?

Lemon curd is a sweet and tangy spread made from lemon juice, sugar, butter, and eggs. It has a rich and creamy texture with a bright and zesty flavor that makes it perfect for many desserts.

Ingredients used for Lemon Curd:

  • Lemons: The main ingredient in lemon curd that gives it its distinctive flavor. Use fresh lemons for the best results.
  • Sugar: Used to sweeten the curd.
  • Eggs: Used to thicken the mixture and give it a rich texture.
  • Butter: Gives smoothness, richness, creaminess, shine and balances the sourness of the lemon in the curd

Common uses of Lemon Curd:

1) Topping for Desserts: Lemon curd adds a burst of tangy sweetness when used as a topping for cakes or cupcakes. It pairs particularly well with vanilla or coconut flavors.

2) Filling for Pastries: Many pastry recipes call for lemon curds such as eclairs or turnovers. Its natural tartness helps temper richness in other pastries fillings such as whipped cream, and custard filling.

3) Spread on Toasts : Lemon Curds makes bread less bland specially those dry toast.

4) Dipping sauce: Lemon curry can be freshly served as dipper that complements fruits like strawberry

Overall if one taste lemon curry he would be delighted with its sharp, tangy, sweet flavors.

How to Thicken Lemon Curd for Cake Pie Filling

If you’ve ever made lemon curd and found it too runny, don’t worry! It’s a common problem that can be easily fixed. Here are some basic and advanced tips to thicken lemon curd:

Reasons why lemon curd may be runny:

– Not enough eggs

– Too much liquid added

– Not enough cooking time

– Too much heat

Basic tips to thicken lemon curd:

1. Add cornstarch or flour: Mix 1 tablespoon of cornstarch or flour with 1 tablespoon of water to form a slurry. Then, whisk the slurry into the runny lemon curd while it’s still hot. Cook for an additional minute or two until thickened.

2. Cook longer: If your lemon curd is still very runny, try cooking it longer over low heat until it thickens on its own.

Advanced tips to thicken lemon curd:

1. Whisk in butter: Adding cold butter will help emulsify and stabilize the mixture, making it creamier and thicker.

2. Use egg yolks only: Yolks contain more fat than whites and will help thicken the mixture.

3. Add gelatin sheets or powder: Soak gelatin sheets in cold water until soft, then add them to the warm (not hot) lemon mixture and stir until dissolved. For powdered gelatin, dissolve it in warm water before adding to the lemon mixture.

By following these tips, you’ll be able to get a thick and smooth result every time you make your favorite dessert with a delicious homemade batch of tangy-sweet lemon curd as cake filling or pie crust topping!

Basic Tips to Thicken Lemon Curd

Are you tired of your lemon curd turning out too runny? Don’t worry, there are several easy ways to thicken it up. Here are some basic tips:

Using Cornstarch

  • Mix cornstarch and sugar together before adding it to the lemon mixture.
  • Cook the curd over low heat while constantly stirring until the desired consistency is reached.

Using Flour

  • Mix flour with room temperature butter before adding it into the lemon mixture.
  • Cook the curd for an additional five minutes after incorporating the flour mixture, stirring constantly.

Using Gelatin

  • Dissolve gelatin in warm water and add it at the end of cooking process just before straining and cooling the curd.
  • Add a small amount at first since too much can make the curd rubbery or stiff.

Tips for using these thickeners effectively:

  • Avoid boiling as higher temperatures may break down thickening agents such as cornstarch and flour.
  • Pre-mix ingredients before adding them into your lemon mixture, this helps prevent lumps from forming during cooking process.
  • Curtail overall volume by not reducing liquid excessively which cause crystalization of sugars and affects texture of final product.


Advanced Tips to Thicken Lemon Curd

Lemon curd is a delicious and versatile spread that can be used in many recipes. However, sometimes it can turn out too thin or runny which can be disappointing. Luckily, there are advanced tips you can use to thicken your lemon curd.

Using Egg Yolks to Thicken Lemon Curd

Egg yolks are a traditional thickening agent for lemon curd. They contain natural emulsifiers that help bind the ingredients together and create a thicker consistency. To use egg yolks as a thickener:

  • Separate the yolks from the whites and whisk them together in a bowl
  • Add them slowly to your lemon curd mixture while stirring constantly
  • Cook over low-medium heat until it thickens and coats the back of a spoon. Don’t let it boil or it will curdle.

Using Butter to Thicken Lemon Curd

Butter is another delicious way to add thickness and richness to your homemade lemon curd. The fat content in butter helps thicken the mixture without adding additional eggs, which makes it an attractive option for those with egg allergies or sensitivities. Here’s how you can do it:

  • Add one tablespoon of butter at room temperature when whisking together ingredients before cooking.
  • Mix all ingredients thoroughly with electric mixer on medium speed until creamy consistency is reached (this should take about five minutes).
  • The butter will emulsify well into other liquids making perfect texture.

Using Whipped Cream to Thicken Lemon Curd

If you want a lighter, fluffier texture for your lemon curd, whipped cream is an excellent option. The air incorporated in the cream creates a mousse-like consistency that pairs beautifully with tart lemon flavors. Here’s how you can do it:

  • Whip heavy cream until soft peaks form.
  • Cook the lemon curd over low-medium heat as usual and let it cool completely afterward.
  • Gently fold whipped cream into cooled lemon curd mixture to achieve desired lightness and fluffiness.

Tips for Using These Thickeners Effectively

When using these advanced techniques to thicken your lemon curd, there are a few tips to keep in mind:

  • Be careful not to add too much of any thickening agent, or it may affect the flavor of your finished product.
  • Make sure to constantly stir when adding egg yolks so they don’t scramble upon contact with hot liquid.
  • For butter and whipped creams make sure that ingredients are well beaten/mixed so there’s no separation in texture upon cooling.

In conclusion, by utilizing these advanced techniques: egg yolks, butter and whipped creams correctly can take your homemade lemon curd from average to extraordinary. We hope you enjoy making delicious treats with sweet & tangy citrus taste!

Troubleshooting Common Issues with Lemon Curd

How to fix lumpy lemon curd

If your lemon curd has become lumpy, don’t worry! It’s a common problem that can be easily fixed. One cause of lumps in lemon curd is overcooking or overheating the mixture. If this is the case, try straining the curd through a fine mesh sieve or cheesecloth. This will remove any lumps and give you smooth, velvety lemon curd.

Another possible cause of lumps is adding the butter too quickly or not whisking it in well enough. To fix this issue, let your lemon curd cool down slightly before adding the butter. Cut your butter into small pieces and whisk them in gradually until fully incorporated.

How to fix overcooked or scrambled lemon curd

If you’ve overcooked or scrambled your lemon curd, don’t worry – all is not lost! First of all, do not try to save it by reheating it as this will only make things worse.

The best way to salvage an overcooked/curdle lemon curd is to start fresh with a new batch and use less heat when cooking it. When making your new batch of lemon curd, cook it slowly over low heat while constantly stirring until thickened. This should prevent any future issues with overcooking/scrambling.

How to fix curdled lemon curd

Curdling can happen if you add ingredients at the wrong temperature or if you add them too quickly without properly mixing them together.

To fix curdling issues with your lemon curds, try transferring everything back into a blender on high speed for about 20 seconds (while being very careful not to burn yourself). If this doesn’t work, you can also try blending in a tablespoon of cold lemon juice. Alternatively, you can strain the mixture through a cheesecloth or fine sieve to remove any lumps and separate the curdled liquids from solids.

  • When making lemon curd, it’s important to pay attention to the temperature and texture of your ingredients.
  • If you encounter any issues with lumpy or curdled lemon curds, don’t fret! There are simple fixes that can help salvage your recipe.
  • Be patient and take your time when cooking the mixture over low heat while constantly stirring until nicely thickened!

Creative Uses for Lemon Curd

Lemon Curd Cake Recipe

One of the best ways to use lemon curd is by incorporating it into a cake recipe. A classic lemon curd cake is simply a vanilla or lemon-flavored sponge cake that’s filled and frosted with creamy lemon curd, providing both zestiness and sweetness. It’s an excellent dessert for any occasion but particularly perfect during summer. Here are the ingredients you’ll need:

  • 1 1/2 cups all-purpose flour
  • 1 tsp baking powder
  • 1/4 tsp salt
  • 1/2 cup unsalted butter, softened at room temperature
  • 3 large eggs, room temperature
  • 1 cup granulated sugar
  • 2 tsp pure vanilla extract or 1 tbsp fresh lemon juice (for an extra citrusy flavor)
  • 3/4 cup whole milk, at room temperature
  • Jar of freshly made lemon curd (or store-bought if not available)

Baking directions: Preheat your oven to 350 degrees F. Grease two round cake pans with cooking spray or butter and dust them lightly with flour. Combine flour, baking powder, and salt in a large bowl. In an electric mixer fitted with a paddle attachment, beat the butter until smooth and creamy. Add sugar gradually while beating on medium speed until incorporated – then add eggs one at a time – followed by vanilla or lemon juice. Slowly add the dry ingredients mixture alternately with milk in batches until everything is well combined but endeavor not to overmix. Distribute batter evenly between your prepared pans and bake for approximately 25-30 minutes or until golden brown on top or when toothpick inserted comes out clean. Let them cool completely before proceeding. Then, spread lemon curd between the cake layers, making sure you’re not overloading with too much and garnish the top as desired. Enjoy!

Lemon Curd Tart Recipe

Tarts are a versatile dessert that can be customized in various ways depending on the occasion or preference. Lemon curd tart is one of such ways That may seem overwhelming at first, but it’s an excellent showcase for lemon lovers to use their creativity bag of tricks. Ingredients:

  • 1 1/2 cups all-purpose flour
  • 3/4 cup unsalted butter chilled & cubed
  • 1 Egg yolk large
  • 2 tbsp Cream (or milk)
  • Jar of freshly made lemon curd (or store-bought if not available)

Baking directions: Preheat your oven to 375 degrees F. Grease a tartlet mold pan with baking spray or butter. In a food processor fitted with a blade attachment, pulse together flour, sugar, and butter until crumbly texture forms. Add egg yolk and cream/milk while puling until ingredients are combined Scoop out dough onto work surface/board; shape it into a disk using your hand(s). Roll out dough with rolling pin evenly against countertop/bench Cut rolled-out pastry dough into approximately equal-size circles(diameter) using cookie cutter molds. Transfer every circle into mold cavities pressing bottom & sides along side by hand (use fingers gently) Dock every tart crust bottom several times using fork holes before filling each cavity up halfway with the prepared lemon curd mixture in advance Bake for about 18-20 minutes until golden brown on top or when lightly firm underneath. Cool tarts before serving as desired.

Lemon Curd Parfait Recipe

The Lemon curd parfait is a simple, healthy summertime treat that can satisfy your cravings. It’s also not limited to just lemon lovers but more of granola and greek yoghurt filling options with a less sugary lemon curd additive instead. Here’s what you’ll need:

  • 1-2 cups plain Greek yogurt
  • 2 cups fruit (i. e., mixed berries, freshly chopped mango or peaches)
  • Pure maple syrup (optional to sweeten the mix)
  • Homemade granola or store-made quality
  • Jar of freshly made lemon curd (or store-bought if not available)

Mixing directions: In a large bowl, whisk/yogurt-to-safe blender into Maple syrup until combined. Begin layering starting from the bottom i. e granola then yoghurt followed by fruits each time filling up halfway before adding another scoop on top. Drizzle tablespoonfuls of homemade/natural Lemon Curd overtop of each stacked parfait Repeat the layering process one or two times depending on your desired height/quantity Finish off each serving dish by drizzling spoonable dollop(s) of lemon curd on top for added zestiness & sweetness.


In conclusion, mastering the art of making thick and delicious lemon curd is an essential skill every baker should have in their repertoire. With the proper knowledge and technique, anyone can create perfectly tasting desserts that will have everyone coming back for more!


1. Can I make lemon curd using limes or oranges instead?

Yes! You can substitute the lemons with limes or oranges in equal quantities.

2. How long does homemade lemon curd last?

When stored properly in an airtight container in the refrigerator, homemade lemon curd can last up to two weeks.

3. What do I do if my lemon curd comes out too runny?

There are several methods you can try to thicken runny lemon curd such as adding cornstarch or butter while constantly stirring over low heat until thickened.

4. Is it possible to freeze leftover batches of homemade Lemon Curd?

Definitely! Lemon Curds freeze well if stored properly so you can always have ready-to-use filling on hand whenever needed.

5. Can I use substitutes like honey instead of sugar when making Lemon Curds?

While traditional recipes call for caster sugar many substitutes like honey work very well but remember not all recipes convert equally so just be mindful about how much quantity would suffice otherwise you might mess up with the chemistry part of baking/sweets making.