01 -
1 cup buttermilk, chilled.
02 -
½ cup warm hot fudge sauce, plus some for drizzling later.
03 -
1½ cups leveled, all-purpose flour.
04 -
1 teaspoon baking soda.
05 -
½ cup softened butter.
06 -
2 large eggs, brought to room temp.
07 -
½ teaspoon fine sea salt.
08 -
1 cup granulated sugar.
09 -
1 teaspoon vanilla extract, pure.
10 -
½ cup Dutch-style cocoa powder.