Blackberry Cake

Blackberry Cake

Jun 20th 2019

This blackberry cake is soft and moist and has a fluffy lemon blackberry buttercream frosting. The lemon juice cuts the sweetness and brightens up the whole cake.
2 hours

Blackberry Cake Ingredients:

6 large eggs, room temperature
1 cup granulated sugar
1 cup all-purpose flour
1/2 tsp baking powder

Simple Lemon Syrup:

3/4 cup warm water
1 Tbsp granulated sugar
4 Tbsp Lemon Juice (from 1 large lemon)

Blackberry Frosting Ingredients:

3 cups powdered sugar
3 sticks (1 1/2 cups) unsalted butter, room temperature
8 oz Cream cheese, softened at room temperature
1/2 tsp salt (I used fine sea salt)
2 packages (6 ounces each) ( Driscoll’s) blackberries, divided (1 cup for frosting, 1 cup sliced for layers, 6 berries for decor).
2 Tbsp fresh lemon juice from 1 medium lemon
Crystal sprinkles, optional

How to Make the Blackberry Cake:

Preheat Oven to 350˚F. Line bottoms of two 9″ cake pans with parchment paper(do not grease the sides).
1. In the bowl of an electric stand mixer fitted with whisk attachment (this is the one I have), beat 6 large eggs for 1 minute on high speed. With the mixer on, gradually add 1 cup sugar and continue beating 8-10 minutes until thick and fluffy.

2. Whisk together 1 cup flour and 1/2 tsp baking powder then sift this mixture into fluffy egg mixture one third at a time. Fold with a spatula with each addition just until incorporated. Scrape spatula from the bottom to catch any pockets of flour and stop mixing when no streaks of flour remain. Do not over-mix or you will deflate the batter.

3. Divide evenly between prepared cake pans (it helps if you have a kitchen scale to weight the pans). Bake at 350˚F for 23-28 minutes (my oven took 25 min), or until top is golden brown. Remove from pan by sliding a thin spatula (here’s the one I love for cakes) around the edges then transfer to a wire rack and remove parchment backing. Cool cakes to room temperature then slice layers equally in half with a serrated knife.

How to Make Lemon Blackberry Frosting:

1. Combine 2 Tbsp lemon juice with 1 cup blackberries in small saucepan. Simmer 6-7 minutes or until berries easily mash up with a fork then turn off heat. Strain through a fine mesh Strainer, pushing the blackberries through with a spatula until only seeds are left in strainer. Discard seeds and set the puree aside to cool completely to room temp (you should get 5 Tbsp puree)

2. In the bowl of an electric stand mixer fitted with whisk attachment, cream together 3 sticks butter, 3 cups powdered sugar and 1/2 tsp salt on low speed until combined, scraping as necessary. Increase speed to medium-high and beat until white and fluffy (2 to 3 min).

3. Add cream cheese 1-piece at a time and mix until combined then continue to beat 2 min until fluffy, scraping down the bowl as needed. With the mixer on, drizzle in blackberry syrup 1 Tbsp at a time then beat another minute.

How to Assemble Blackberry Cake:

1. Slice 1 cup blackberries and set aside. Make your lemon syrup by combining 3/4 cup warm water, 1 Tbsp granulated sugar and 4 Tbsp Lemon Juice.

2. Place first cake layer on serving platter cut-side up. Brush with 1/4 of the lemon syrup. Spread frosting over the top and layer with 1/3 sliced berries. Repeat with remaining layers placing the final layer cut-side-down, then frost the top and sides. (Tip: For the smoothest results, reserve flattest cake-layer for the top)

3. Pipe remaining frosting onto cake.

A glass of Prosecco or Champagne is the perfect accompaniment!