Serve up a slice of your favorite summer berries with this super moist tayberry cake. The butter, sour cream, and eggs make it lusciously moist, almost like a pound cake or coffee cake. The frosting is really a vanilla whipped cream with a bit of cream cheese, and it's only slightly sweet. It's a refreshing, snackable cake you'll want to nibble on all day long!
Preheat the oven to 350 degrees F. Butter a 9x13 inch baking dish.
In the bowl of a stand mixer, add 3 eggs and add sugar. Using the whisk attachment, whip over medium high for 5-7 minutes or until light, thick, and fluffy.
3 eggs, 1 1/2 cup white sugar
Add the vanilla extract then whisk the softened butter into the mixture. Whip thoroughly. You may notice some small clumps and that's okay.
2 tsp vanilla extract, 1/2 cup unsalted butter
Whip in the sour cream until fully incorporated. Then, reduce the speed to low and gradually add the dry ingredients in small increments. Mix until incorporated.
1/2 cup sour cream, 2 cups all purpose flour, 2 tsp baking powder, 1/2 tsp kosher salt
Remove the whisk attachment and fold in the berries.
1 1/2 - 2 cups tayberries
Transfer to the baking dish and bake for 30-40 minutes or until a toothpick placed into the middle comes out clean.
Prepare frosting
In a small bowl, combine the room-temperature cream cheese, powdered sugar, and vanilla extract.
Whip the cream cheese mixture until fluffy, then drizzle in the heavy cream.
1 cup heavy cream
Whisk until the mixture becomes thick and creamy. Stop when the mixture has stiff peaks that do not collapse when you lift the mixer.
Pipe or spoon over the cake and top with fresh berries.
Notes
Baking Pan SizingI baked this cake in a 10.5 x 7.5 baking dish, which is why the slices look so thick. I recommend using a 9x13, which takes about 30-35 minutes.If you'd like a tall, thick cake, use a 9x9 pan and bake for closer to 40-45 minutes.