Perfectly Chocolate Cake

1 C unsweetened cocoa
2 C boiling water
2 3/4 C All purpose flour
2 tsp baking soda
1/2 tsp salt
1/2 tsp baking powder
1 C butter softened
2 1/2 C Sugar
4 eggs
1 1/2 tsp vanilla

In medium bowl combine cocoa with boiling water mixing until smooth. Cool completely. In medium bowl combine flour, soda, salt and baking powder. Preheat oven to 350. Grease bottom of pan and lightly flour. In large bowl beat butter and sugar until creamy add eggs and vanilla beat about 5 min at low speed. Add flour mixture (in fourths) alternating with cocoa (in thirds) beginning and ending with flour mixture. Do not over beat. Bake about 40 minutes or until done.