This simple white cake is the perfect way to use up an abundance of berries. A 50/50 mix of all-purpose flour and almond flour creates a tender crust with a subtly nutty flavour. Fresh blackberries are used for this snacking cake that's quick to come together. Blackberry icing is the finishing touch.
1½ cupsfresh or thawed frozen blackberriesdivided (see note)
Blackberry Icing
1½cupsicing sugar
3tbspfresh blackberry juicestrained of any seeds
1tbspunsalted buttermelted
1tspfresh lemon juice
Instructions
Preheat the oven to 350°F (180°C). Spray or brush a 10-inch (25 cm) square baking pan with a neutral oil and line it with parchment paper.
Cake
Using a fine-mesh sieve, sift the flour and baking powder into a medium bowl. Stir in the almond flour.
In a stand mixer, combine the butter, granulated sugar, and salt. Using the paddle attachment, beat on low speed for 30 seconds, then increase to high speed and beat until well mixed and pale, about 2 minutes.
With the machine running on low speed, add the eggs, one at a time, fully incorporating each egg before adding the next. Scrape down the bowl so everything is incorporated. Add the lemon zest, lemon juice, and vanilla and mix on low speed until fully combined, about 30 seconds.
Remove the bowl from the stand and fold in the flour mixture until just combined.
Pour the batter into the prepared pan and gently smooth the top with a spatula. Evenly distribute 1 cup of the blackberries on top.
Bake for 40 minutes, rotating it after 30 minutes to help it bake evenly, then cover loosely with foil and bake for another 10–15 minutes or until the cake has begun to rise a bit in the center and doesn’t wobble, and a skewer inserted in the center comes out clean (see note). Be sure not to stick a skewer into a blackberry! Let cool completely in the pan on a wire rack.
Blackberry Icing
In a small bowl, whisk together the icing sugar, blackberry juice, butter, and lemon juice until dissolved into a smooth icing.
Smear the icing over the cake and cut into sixteen slices. Serve cold or at room temperature with the remaining blackberries.
Notes
This cake will keep in an airtight container at room temperature for 2–3 days or in the fridge for up to 1 week. You can also freeze it for up to
1 month before icing it. Thaw the frozen cake in the fridge overnight before icing and serving.