1/2 cup unsalted butter, cut into pieces
¼ C + 1 tbsp cocoa powder
2 oz semi-sweet chocolate, finely chopped
2 tbsp vegetable oil
1 1/3 cups granulated sugar
2 large eggs
1 teaspoon vanilla extract
3/4 cups all-purpose flour, spooned and leveled in cup
1/2 teaspoon baking powder
1/4 teaspoon salt
1 cup coarsely chopped pecans and/or walnuts
Confectioners’ sugar, for dusting on top if desired
Preheat oven to 350 degrees.
Melt butter in a large saucepan. Add in chopped chocolate. Whisk in cocoa and oil until smooth. Cook and stir over low heat until cocoa is blended. Stir in sugar. Add eggs, one at a time, stirring well after each addition. Stir in vanilla. Combine flour, baking powder and salt; gradually add to cocoa mixture. Stir in nuts.
Spread into a greased 9 x 9-in or 8×8 baking pan. Bake for 20-50 minutes or until a toothpick inserted near the center comes out with just a few moist crumbs (no liquid batter). Cool in pan on a wire rack. Dust with confectioners’ sugar, if using