1/3 c. cocoa
1 3/4 c. sugar
1/2 c. milk
1/2 c. butter
2 tsp. vanilla

Bring cocoa, sugar, milk and butter to a boil on high. Reduce heat but maintain boil and cook 8 minutes. Remove from heat, add vanilla and beat with electric hand mixer about 1/2 minute. Thickens and sets fast. Pour quickly into greased pie pan. Cut while still warm.

For frosting, cook 6 minutes.