01 -
Chopped semi-sweet chocolate bars (8 oz/226g).
02 -
Unsalted butter (1/2 cup/113g).
03 -
White sugar (3/4 cup/150g).
04 -
Brown sugar, either light or dark (1/4 cup/50g).
05 -
Three large eggs.
06 -
Vanilla extract, pure (1 teaspoon).
07 -
Flour, all-purpose (2/3 cup/84g).
08 -
Cocoa powder, unsweetened (2 tablespoons/10g).
09 -
Pinch of salt (1/4 teaspoon).
10 -
Semi-sweet chocolate chips (1 cup/180g).
11 -
Softened butter for frosting (1/2 cup/113g).
12 -
Powdered sugar (1 1/2 cups/180g).
13 -
Extra cocoa powder for frosting (1/3 cup/27g).
14 -
Warm milk or heavy cream (3 tablespoons).
15 -
A drop of vanilla for frosting (1/2 teaspoon).
16 -
A tiny pinch of salt for frosting.