For bold yellow, you can use turmeric (about 1/2 teaspoon per 2 cups frosting). Find freeze-dried blueberries and raspberries at most grocery stores or at nuts.com.

Mix the batter well, but not too much: Cream the butter and sugar until the mixture is fluffy and turns a lighter color, ...

Whip up the Chantilly cream. Beat cream cheese and mascarpone in a stand mixer until smooth. Beat in powdered sugar until no ...

Either adapt your chosen yellow cake recipe to make it denser with less of a rise or find a vanilla cookie bar recipe, then frost it with a generous layer of chocolate icing and you're onto a winner.

Bake in preheated oven 35 minutes, rotating and turning pans halfway through. Cake tops should have a slight browning when done. Cool in pans 15 minutes; turn out onto cooling racks.