Vanilla cake with vanilla frosting is everyone ... Substitute 1/3 cup of powdered sugar in the frosting with cocoa powder to make chocolate buttercream. Preheat the oven to 350 F.

In a mixing bowl or jug, combine eggs, yoghurt, water, oil and vanilla. Add to the dry ingredients ... Allow to cool completely before preparing with the buttercream. Beat together the egg whites ...

This Moist Sourdough Chocolate Sheet Cake with Chocolate Buttercream is a delicious twist on a classic chocolate cake. This ...

For the orange buttercream variation, omit the milk and vanilla from the basic recipe. Stir in the orange zest and juice until thoroughly combined. For the chocolate variation, omit the milk from ...