The Best Chocolate Soda Cake References. Web combining one of your favorite cake mix and a different type of soda can give your cake a unique flavor and a more unique texture. Web preheat oven 2 to 160°c.

Combine the cake mix and cola in a large bowl. Combine the sifted flour, custard powder, cocoa, bicarbonate of soda and sugar with the butter, milk, eggs and vanilla in a bowl and mix on medium speed for 8 minutes. Use a hand whisk to mix ingredients until light and smooth, about 3 minutes.

