Ingredients
3/4 c. unsweetened Dutch-process cocoa powder
3 tbsp. unsweetened Dutch-process cocoa powder
1/2 c. boiling water
2 tbsp. boiling water
3 3/4 c. cake flour (not self-rising)
1 1/4 tsp. baking soda
3/4 tsp. Coarse salt
15 oz. unsalted butter
2 3/4 c. sugar
1 tbsp. sugar
1 tbsp. pure vanilla extract
1 tsp. pure vanilla extract
5 large eggs
1 1/4 c. whole milk
Preparation
Step 1Mix cocoa powder and boiling water in a bowl until smooth. Let cool.Step 2Sift flour, baking soda, and salt into a large bowl. Beat butter and sugar with a mixer on medium speed until pale and fluffy, 3 to 4 minutes. Beat in vanilla. Add eggs, 1 at a time, beating well after each addition and scraping bowl as needed.Step 3Pour milk into cocoa mixture in a slow, steady stream, whisking until smooth. With mixer on low speed, add flour mixture to butter mixture in 3 additions, alternating with cocoa-milk mixture, starting and ending with flour mixture. Use immediately.
