These instruction use a stand mixer with a dough hook. For making by hand instructions see recipe notes.
In a small bowl, heat the milk in the microwave for 45 seconds until it is warmed to 110℉. Pour in the yeast and sprinkle a pinch of sugar over the yeast. Let it sit for 10 minutes. It will become bubbly.
1 cup Milk, 2 1/4 tsp Active dry yeast
In a large mixing bowl, sift the flour and cocoa powder together. Add in sugar and salt.
4 cups All-purpose flour, 1/2 cup Unsweetened cocoa powder, 1/4 cup White granulated sugar, 1 tsp Salt
Add in the milk/yeast mixture, cubed butter, and lightly beaten eggs.
2 Large eggs, 10 TBSP Unsalted butter
Mix on low speed until a dough starts to form, then switch to medium speed. Mix for 5 minutes. The dough will be soft and tacky to the touch.
Preheat the oven to 200℉. Spray a large mixing bowl with nonstick spray and place dough into the bowl. Cover with a kitchen towel. Place bowl in the oven. Turn it off and crack open the door. Let it rise for 1 hour until doubled in size.