INGREDIENTS
•
1 cup (2 sticks) butter, plus more for greasing pan
•
5 ounces unsweetened chocolate
•
1/4 cup unsweetened cocoa powder
•
2 cups granulated sugar
•
1 tablespoon vanilla
•
3 large eggs
•
1 1/4 cups all-purpose flour
•
Half of a 14-ounce can dulce de leche
•
Powdered sugar, for sprinkling