In a large bowl, combine flour, sugar, baking soda, baking powder, salt and cocoa powder.
Make a well at the middle and add butter, sour cream, eggs, water and vanilla. Mix using a handheld mixer until smooth. Divide the batter between the 2 pans smoothing the top with a spatula. Bake from 15 to 18 minutes or until a toothpick inserted at the middle comes out clean. Let them cool completely.
In a large bowl, combine the frosting ingredients and mix until well combined.
Place one of the cake on a cake platter and top with frosting then place the second cake on top. Spread frosting evenly on top and sides of the cake. You can top with berries of your choice and dust with powdered sugar. Ready!
Recipe by Gluten-Free by Jan at https://glutenfreebyjan.com/gluten-free-chocolate-cake/