I baked professionally for six years, and lemon poppy seed cake was always a bestseller. It appeared on every menu I worked with, but commercial versions often relied on artificial lemon flavor and never tasted as bright or fresh as they should. After so many requests for my zesty lemon poppy seed cupcakes, I decided it was time to upgrade the classic layer cake using fresh lemon juice and zest, crunchy poppy seeds, a vibrant lemon curd center, and a silky cream cheese frosting.
This recipe delivers everything you want from a lemon cake: a tender, moist crumb studded with poppy seeds, bold citrus flavor from fresh lemon, a tangy lemon curd filling, and a smooth cream cheese frosting that balances sweet and tart. Light, vibrant, and satisfying, it’s the perfect dessert for spring gatherings, brunches, or any time you want a bright, citrusy cake.
I love baking with lemon so much that I have a collection of lemon-forward recipes. If you like this cake, try other lemon desserts like lemon-raspberry cake or lemon poppy seed cookies for more citrus inspiration.
Let’s Make It!
Below is the full recipe with ingredient amounts and step-by-step instructions.
1
Combine the butter with the dry ingredients. Use the reverse-creaming method: mix cubed butter into the dry mixture until it resembles coarse sand. This produces a tender, moist crumb.
2
Add the wet ingredients in two additions. Mix in half the wet ingredients until the flour is moistened and the batter is pasty. Scrape the bowl, then mix in the remaining wet ingredients until smooth and fully incorporated.
3
Divide the batter into two 8-inch pans and bake. Grease the sides and line the bottoms with parchment for easy release. Bake until the edges are golden and a toothpick comes out with a few moist crumbs.
4
Cool the pans on a wire rack. Let the cakes rest in the pans for about 30 minutes, then remove them and cool completely on the rack before assembling.
5
Prepare the lemon curd. You can make the curd ahead of time or while the layers bake. Cook the curd gently until thick, then strain and chill. Covering the surface with plastic prevents a skin from forming.
6
Make the cream cheese frosting. Beat butter until creamy, add cold cream cheese and mix until smooth, then add powdered sugar and beat until light and fluffy. Add cream and vanilla to adjust consistency. If you want full coverage, increase the frosting quantity.
7
Assemble with a frosting dam. Trim a thin layer from the top of the first cake to reveal fresh crumb, spread a thin crumb coat inside, then pipe a frosting border around the edge to hold the curd. Fill with half the lemon curd.
8
Top with the second layer and chill. Place the second layer upside down so the top is flat, then chill the cake for 30 minutes so the frosting sets and makes final frosting easier and less messy.
9
Finish with a “naked” frosting layer. Spread the remaining frosting thinly so some of the cake shows through for a rustic, elegant look.
10
Top with remaining lemon curd and garnish. Spread the remaining curd on top and sprinkle extra poppy seeds. Fresh lemon zest or thin lemon slices make a lovely finishing touch. Chill for another 30 minutes, then slice and serve.
Moist Lemon Poppy Seed Cake (with Lemon Curd Filling)
This moist, bright lemon poppy seed layer cake is made with fresh lemon juice and zest for bold citrus flavor. The tender crumb is flecked with poppy seeds and layered with lemon curd and cream cheese frosting for a light, zesty dessert perfect for spring gatherings.
Ingredients
Lemon Curd Filling
- 1/2 cup granulated sugar
- 1 tablespoon + 1 teaspoon fresh lemon zest
- 2 large eggs
- 1/2 cup fresh lemon juice
- Pinch fine sea salt
- 6 tablespoons cold unsalted butter, cubed
- 1 teaspoon vanilla extract
Lemon Poppy Seed Cake Batter
- 1 1/2 cups granulated sugar
- 1 tablespoon fresh lemon zest, packed
- 2 1/3 cups cake flour
- 2 tablespoons poppy seeds
- 1 tablespoon baking powder
- 1 teaspoon fine sea salt
- 11 1/2 tablespoons unsalted butter, cubed and at room temperature
- 3 large eggs, room temperature
- 1/2 cup whole milk, room temperature
- 1/2 cup heavy cream, room temperature
- 1/2 cup sour cream, room temperature
- 1/3 cup vegetable oil
- 2 tablespoons fresh lemon juice
Cream Cheese Frosting
- 12 tablespoons unsalted butter, room temperature
- 4 ounces cold full-fat cream cheese
- 1 2/3 cups powdered sugar
- 2 tablespoons heavy cream
- 1 teaspoon vanilla bean paste or extract
Instructions (Summary)
- For the curd: Rub lemon zest into sugar, whisk in eggs, then whisk in lemon juice and salt. Cook over medium-low, stirring constantly, until thick (about 170°F/78°C). Strain, stir in cold butter and vanilla, cover with plastic wrap on the surface, and chill.
- For the cake: Preheat oven to 350°F (180°C). Grease and line two 8-inch pans. Rub zest into sugar, whisk in flour, poppy seeds, baking powder, and salt. Beat in butter on low until sandy. Whisk wet ingredients together, add half to the dry to moisten, scrape, then add remaining wet ingredients and mix until combined. Divide batter between pans (about 670 g each) and bake 25–30 minutes. Cool in pans 30 minutes, then finish cooling on racks.
- For frosting: Cream butter 1–2 minutes, add cream cheese and mix on low until smooth, add powdered sugar and beat until light and fluffy, then add cream and vanilla.
- Assembly: Trim a thin layer from the top of the bottom layer, apply a thin crumb coat, pipe a frosting border, and fill with half the curd. Place the second layer upside down, chill 30 minutes, then finish frosting thinly for a “naked” look. Spread remaining curd on top, garnish with poppy seeds and lemon zest or slices. Chill again, slice, and serve.
Notes
Measuring tip: Measure dry ingredients properly using the spoon-and-level method or a kitchen scale for best results. Avoid scooping flour directly with measuring cups.
Storage: Store leftover cake in an airtight container in the refrigerator for up to 5 days.
Freezing: Wrap whole cake or individual slices tightly and freeze for up to 1 month.