Super Easy Lemon Blackberry Cake Recipe

Cake
0 Preheat oven to 350°F. Grease and dust with flour a 9x13-inch cake pan (or line the bottom and sides with parchment paper)
2 In a separate bowl, whisk together the flour, baking soda, baking powder, and salt for about a minute.
3 In the large bowl of an electric mixer, beat together the oil and sugar at high speed for a minute, then reduce to medium speed. 
4 Gradually add the eggs, one at a time, mixing in between each one. Stir in the vanilla, lemon juice, and zest.
5 Switch the mixer to low speed. Add the dry ingredients to the wet ingredients, alternating with the sour cream, beginning and ending with the flour mixture. Mix until just combined.
6 Fold the blackberries into the batter using a spatula.
7 Pour the cake batter into the prepared cake pan. Bake in the center of the oven for 25-30 minutes, or until a toothpick inserted into the center comes out clean and the cake is golden brown.
10 Let the cake cool in the pan for 15 minutes before transferring it to a cooling rack to cool completely before adding the toppings
Whipped topping
9 In a large mixing bowl for an electric mixer, use the whisk attachment to beat together the cream and powdered sugar at high speed until stiff peaks form.
11 Spread the whipped topping on top of the completely cooled cake and decorate it with fresh blackberries and lemon slices.