Chocolate cake with chocolate swirl

My children love chocolate, who doesn't? This is a simple chocolate cake that can be put together in 10 minutes.

Ingredients

1 cup all purpose flour
1/4 cup processed Dutch cocoa powder
1/4 teaspoon salt
1/4 teaspoon baking powder
1/4 teaspoon baking soda

1/2 cup butter room temperature
3/4 cup brown sugar
1 large egg plus 1 yolk room temperature
1 teaspoon vanilla

1/2 cup buttermilk

1/2 white chocolate and milk chocolate mix


1. Preheat oven to 350˚F and line an 8-inch square baking dish with parchment paper.

2. In a bowl, combine flour, cocoa, salt, baking powder, and baking soda.

3. In another bowl, cream butter and brown sugar together, add the egg, and the yolk and vanilla.

4. Add in one third of the flour mixture and continue beating. Add in half the buttermilk. Alternate between flour and milk until all incorporated.

5. Transfer the batter into the baking dish. Microwave the white and milk chocolate chips for 30 seconds in the microwave. Use a fork and swirl the chocolate on to the top of the batter.

6. Bake in the oven until the cake tester comes out clean.