Ingredients:
Nonstick spray, as needed
420 g
Cake flour (bleached), plus more for dusting
820 g
Sugar, granulated, divided
280 g
Dutch-process cocoa powder, divided
25 g
Salt, divided
15 g
Baking soda
15 g
Baking powder
11 g
Glycerol monostearate, optional
340 g
Buttermilk
340 g
Canola oil
150 g
Egg, about 3 large
55 g
Vanilla extract, pure, divided
440 g
Water, divided
50 g
Vodka, or other spirit with 35%–40% ABV
900 g
Powdered sugar
450 g
Butter, room temperature
110 g
Milk