Gluten Free Lemon Poppy Seed Blackberry Cake Recipe

Gluten Free Lemon Poppy Seed Blackberry Cake Recipe

Bake the Gluten Free Lemon Poppy Seed Blackberry Cake Recipe for a bright, tender cake with fresh berries and lemon glaze.

Prep Time20 minutes
Cook Time45 minutes
Total Time65 minutes
Yield8

Ingredients

Instructions

Step 1: Preheat and prepare the pan

Warm the oven to 350°F (175°C) and prepare your chosen 9-inch cake pan — grease and lightly flour it or line it with parchment paper so the cake releases cleanly after baking. Take a moment to set a clean wire rack nearby; you’ll need it for cooling, and having it ready keeps the finish crisp and calm.

Step 2: Combine the dry ingredients

In a medium bowl, whisk together the gluten-free all-purpose flour, baking powder, baking soda, and salt until evenly blended and aerated. Give it a gentle sifting motion with the whisk so there are no lumps; this creates a uniform, fine texture that helps the batter come together smoothly.

Step 3: Cream the butter and sugar

In a large mixing bowl, cream the softened unsalted butter with the granulated sugar until it becomes light, pale, and fluffy. This is the moment when texture is built — you want air incorporated so the finished cake is tender and springy rather than dense.

Step 4: Add the eggs and lemon

Beat the eggs into the creamed butter one at a time, mixing until each is incorporated and the mixture regains a smooth, satiny texture. Fold in the bright lemon zest and the fresh lemon juice so their oils and acidity bloom through the batter, brightening aroma and flavor.

Step 5: Alternate dry and wet additions

Add the flour mixture and buttermilk to the butter mixture in alternating additions, starting and ending with the flour mixture. Stir gently and stop as soon as everything is combined; overmixing can tighten the crumb. The batter should be pale yellow, slightly thick, and ribbon-like when lifted.

Step 6: Fold in the final mix-ins

Fold in the vanilla extract and the poppy seeds, ensuring the tiny black seeds are evenly distributed through the batter. Gently fold in the fresh blackberries so they’re dispersed without breaking up too much — you want whole berries throughout the cake for bursts of flavor.

Step 7: Transfer the batter to the pan and smooth

Pour the batter into the prepared cake pan, using a spatula to smooth the top into an even layer; tap the pan lightly on the counter to settle the batter and bring any trapped air to the surface. The filled pan should look even, dotted with dark blackberry pockets and flecked with poppy seeds.


Step 8: Bake until set

Bake in the preheated oven for 40–45 minutes, or until a toothpick inserted into the center comes out clean or with just a few moist crumbs attached. The top should be an even golden-brown and spring back gently when pressed.

Step 9: Cool briefly, then finish cooling on a rack

Allow the cake to cool in the pan for about 10 minutes so it firms slightly, then invert it onto the wire rack to cool completely. Cooling fully before glazing ensures the lemon glaze sits on the surface instead of melting into the crumb.

Step 10: Make the lemon glaze

Whisk the powdered sugar with the fresh lemon juice and lemon zest until the glaze is smooth, glossy, and pourable but still thick enough to hold gentle ridges when drizzled. Taste and adjust a drop more lemon juice if you want a tangier finish.

Step 11: Glaze and serve

Set the fully cooled cake on the wire rack and drizzle the lemon glaze evenly over the top, allowing thin streams to run down the sides. Scatter a few fresh blackberries and extra lemon zest over the glaze as a fresh, colorful finish before slicing and serving.


Notes