In a mixing bowl, whisk together the dry ingredients (All-purpose flour, baking powder, sugar, Cocoa powders and sea salt). Make a well, add the eggs, sour cream, vegetable oil and vanilla bean paste. Mix until combined.
6.70 oz all-purpose flour, 1/2 Tbsp baking powder, 5.29 oz granulated sugar, 1.40 oz unsweetened cocoa powder, 1/8 tsp sea salt, 3 eggs, 9.35 oz sour cream, 5.82 oz vegetable oil, 1 Tbsp vanilla bean paste, 1.60 oz black cocoa powder