Another Tasty Kitchen recipe. I've made this many times and its really good. Its VERY easy.
MOCHA LAVA CAKE
3/4 c. sugar
1 c. sifted AP flour
2 tsp baking powder
a pinch of salt
1 piece unsweetened chocolate (1 square)
2 Tbsp butter
1/2 c. whole milk
1 tsp vanilla extract
1/2 c. brown sugar
1/2 c. granulated sugar
4 Tbsp powdered cocoa
1 c. cold strong coffee (I used instant with a heaping Tbsp)
Sift together 3/4 c. sugar, flour, baking powder and salt. Set aside.
Melt square of unsweetened chocolate and butter in the microwave. Add to dry ingredients alternaltely with the milk and vanilla. Blend. Pour into a greased 8x8 pan.
Combine brown sugar, the 1/2 c. additional granulated sugar and cocoa powder. Sprinkle over the cake batter. Pour the one cup cold coffee over the top of the cake. This will look terrible at this point but don't worry. Bake at 350* for 40 minutes.