Mocha Marble Cake

1. Place the butter and sugar into your stand mixer and cream until light and fluffy. Add the eggs and continue beating until incorporated. While the beaters are still running slowly add the yogurt and milk and vanilla. In a separate bowl combine your flour salt, baking powder and soda and add slowly to the wet mixture until just combined. Do not over beat, and yes this batter will be THICK.
2. Oil and parchment paper two round cake pans. Place one third of the batter in each of two pans. Mix the remaining third of the yellow cake batter with the cocoa powder, coffee and milk. Spoon the mocha batter in dollops evenly divided between the two cake pans. Swirl with end of wooden spoon or knife.
3. Bake in 350° oven for 25-30 minutes or until toothpick inserted in the center of the cake comes out clean. Cool completely before frosting.

Marshmallow Cream Cheese Frosting

1. Beat softened cream cheese until flufffy. Melt marshmallows and butter in microwave for 30 seconds, then stir. Add another 15-30 seconds if needed to melt completely and have a nice smooth consistency. Let cool a bit and then add to the cream cheese and whip until fluffy. If mixture seems thin, you can fridge for an hour and whip once more just before frosting cakes.