Preheat your oven to 350 °F (175 °C). Line 2 muffin pans with 24 liners. In a large bowl, stir together the dry ingredients (sugar through salt).
2 cups (400 grams) granulated sugar, 1 3/4 cups (218-241 grams) flour, 6 tablespoons (42 grams) Dutch-process cocoa powder, 6 tablespoons (42 grams) black cocoa powder, 1 1/2 teaspoons baking powder, 1 1/2 teaspoons baking soda, 1 teaspoon salt
Add the eggs, milk, oil and vanilla.
2 large eggs, 1 cup milk of choice, 1/2 cup (120 ml) canola or vegetable oil, 2 teaspoons vanilla extract
Mix until combined, and then stir in the boiling water. The batter will be almost as thin as water. Divide the batter between the muffin liners. I used a little less than 1/4 cup or 56 grams per liner.
1 cup (236 ml) boiling water
Bake for 17-25 minutes or until a toothpick comes out with some moist crumbs, but no uncooked liquid.
Let cool for 5 minutes in the pans, and then carefully turn out onto a rack to cool. Let cool completely before frosting.