Mocha Frosting

INGREDIENTS

2 squares unsweetened chocolate
2 1/2 cups confectioners sugar
1/3 cup strong coffee
1/3 cup butter, softened
1 egg yolk
1/2 tsp vanilla

DIRECTIONS

Melt chocolate with the coffee and let cool. Cream butter; when fluffy add egg yolk. Beat until combined, then slowly add sugar. Add vanilla and chocolate mixture and beat until smooth. Frost top of bottom layer. Set top layer on the bottom layer and frost top and sides. Smooth top and then draw dull knife across cake in vertical lines at 1″ intervals, then in horizontal lines at 1″ intervals.