Lemon Curd Filled donuts are soft, homemade fried donuts filled with scratch-made lemon curd and tossed in a crisp sugar coating. These fluffy, yeasted donuts keep their round shape (donut holes intact) and the bright, tangy lemon curd provides a lovely balance to the sweet exterior. Skip the bakery and make them at home for a fresh, irresistible treat.
This lemon curd uses simple pantry ingredients: lemon zest, lemon juice, sugar, butter, and eggs. If you want a quicker version, you can use an Instant Pot lemon curd method that also yields excellent results. For another bright lemon dessert, try lemon thumbprint cookies—shortbread cookies topped with a spoonful of lemon curd for a sweet and tangy bite.
Donuts are beloved worldwide and appear in many forms: Japan’s an-doughnut often contains sweet red bean paste, Germany’s Berliner is filled with jam, cream, or chocolate, Mexico has churros, France serves beignets, and West Africa makes puff-puffs. You’ll find this recipe referred to as lemon custard-filled donuts, lemon-filled doughnuts, or lemon curd doughnuts—whichever name you prefer, they’re delicious and made from everyday ingredients.
The lemon curd is prepared with lemon peel, eggs, sugar, cornstarch, butter, and milk. The dough is a straightforward yeasted dough made with bread flour, milk, sugar, butter, and yeast. Together they create a tender, flavorful filled donut perfect for breakfasts, brunches, or dessert.
Ingredients needed:
Below are the ingredients you’ll need for homemade lemon curd donuts. For exact measurements and a printable card, use the recipe card at the end of the post.
Lemon curd:
- Whole milk: used to infuse lemon flavor and add creaminess.
- Lemon peel: use organic lemons if possible.
- Large egg: room temperature.
- Egg yolks: room temperature for a richer curd.
- Granulated sugar: to sweeten the curd.
- Cornstarch: sifted, to thicken the curd.
- Fine sea salt: a pinch to enhance flavor.
- Unsalted butter: room temperature, for a silky finish.
Donut dough:
- Instant yeast: for reliable rise and texture.
- Granulated sugar: for a touch of sweetness in the dough.
- Unsalted butter: room temperature, to enrich the dough.
- Warm whole milk: activates the yeast and tenderizes the dough.
- Large egg: room temperature, adds structure.
- Bread flour: for a slightly chewier, sturdy dough that holds filling well.
- Fine sea salt: balances the flavors.
How to make lemon curd filled donuts from scratch
To make the lemon curd:
- Heat milk with lemon peel: In a medium heavy-bottom saucepan, warm the milk with the lemon peel over medium-low heat until it begins to steam. Do not boil. Remove from heat and let it steep for 10 minutes to infuse flavor.
- Whisk egg mixture: In a bowl, whisk the whole egg and egg yolks with sugar until pale. Sift in the cornstarch and salt, then whisk until light yellow and smooth.
- Temper the eggs: Remove the lemon peel from the milk. Slowly add a ladle of hot milk into the egg mixture while whisking continuously to temper the eggs. Continue adding milk in a thin stream until combined.
- Cook until thick: Return the mixture to the saucepan and cook over medium-low heat, whisking constantly, until the custard thickens (about five minutes). Avoid boiling.
- Finish with butter: Remove from heat and whisk in the butter until fully incorporated and the curd is silky.
- Chill: Transfer the curd to a bowl, press plastic wrap directly on the surface to prevent a skin, let cool to room temperature, then refrigerate until ready to use.
To make the donuts:
- Prepare yeast mixture: In a large bowl, whisk warm milk and the room-temperature egg together, then add the instant yeast and whisk until dissolved.
- Add dry ingredients: Mix in sugar, bread flour, and salt. Stir until combined and the dough pulls away from the sides of the bowl.
- Knead and incorporate butter: Knead the dough using a dough hook or by hand until combined, then add softened butter and knead until smooth.
- First rise: Form the dough into a smooth ball, place in a greased bowl, cover, and let rise in a warm spot until doubled in size (about two hours).
- Shape: Divide the dough into equal pieces (six to eight), shape each into a ball, place on a parchment-lined baking sheet, cover, and let rest for 35–40 minutes.
- Fry: Heat oil in a deep skillet to 350°F (175°C). Fry a few dough balls at a time until golden brown on one side (1–2 minutes), flip, and fry the other side.
- Drain and cool: Remove with a slotted spoon and drain on a wire rack set over paper towels.
- Coat in sugar: While still slightly warm, dip each donut in a bowl of granulated sugar to coat evenly.
- Fill and serve: Fit a piping bag with a small tip, fill with chilled lemon curd, poke a hole in the side of each donut, and pipe in curd until a small amount shows on the surface. Serve fresh.
Recipe variations:
- Milk alternatives: Use 2% or a plant-based milk if you prefer.
- Choice of frying oil: Canola, vegetable, or light olive oil all work well for frying.
- Airier texture: Add 1 teaspoon baking powder or soda if you want slightly fluffier donuts.
- Extra lemon flavor: Stir 1 tablespoon lemon juice into the curd or fold lemon zest into the coating sugar.
- Flavor boost: Add 1 teaspoon vanilla extract to either the curd or dough for depth.
- Coating options: Use powdered sugar instead of granulated sugar, or glaze with a simple lemon or vanilla icing.
How to serve:
These filled fried donuts are versatile and delicious any time of day. Serve them warm with coffee, tea, or as a dessert. Here are some serving ideas:
- Add a dollop of whipped cream for an extra creamy bite.
- Pair a donut with a scoop of ice cream for a decadent dessert.
- Make smaller dough balls to create filled donut holes for parties—reduce frying time and use a smaller piping tip to fill.
- Swap the lemon curd for chocolate ganache, pastry cream, or fruit preserves for different flavors.
- Decorate with fresh fruit, sprinkles, or a dusting of powdered sugar for presentation.
Frequently asked questions
Is there another way to shape these donuts?
Yes. Instead of shaping dough balls, roll the dough to about 1/2 inch thick and use a round biscuit or cookie cutter to cut rounds. Place them on a baking sheet, cover, and let them rest before frying.
Do I have to make yeasted donuts?
Yeast donuts give the best texture and hold up well to filling. You can make cake-style donuts, but they require a different ratio of ingredients and are more fragile when injecting filling.
Who invented the donut?
One popular story credits Hanson Gregory, an American sailor, with creating the familiar ring-shaped donut by punching a hole in the center in 1847. Earlier fried dough treats like oliebollen—made by Dutch settlers—also influenced modern donuts.
What are the nutrition facts for this recipe?
Nutrition per donut (approximate): 358–359 calories, around 13–14 g fat (about 7–8 g saturated fat), roughly 53–54 g carbohydrates, 24–29 g sugar, 118 mg cholesterol, and about 9 g protein. Exact values will vary based on portion size and ingredients used.
How to store leftovers:
- Store: Place leftover donuts in an airtight container and refrigerate for up to three to four days.
- Freeze: Freezing is not recommended because the texture of the curd and fried dough can change.
More lemon desserts to try:
Lemon Tart Recipe
Air Fryer Lemon Squares
Lemon Poke Cake Recipe
One Bowl Lemon Brownies
Baking tips:
- Bring eggs and dairy to room temperature for better mixing and rise.
- Use store-bought lemon curd or donut mix to shorten prep time if desired.
- A stand mixer with a dough hook speeds up kneading and yields consistent results.
- Use a heavy-bottomed saucepan for the curd and whisk continuously while cooking to avoid lumps.
- Brush fried donuts with a little melted butter before rolling in sugar to help it adhere.
- Strain the curd through a fine mesh sieve for an extra-smooth texture.
- If you lack a piping bag, use a zipper bag with a small corner snipped off to fill donuts.
Lemon Curd Filled Donuts
