Fudge with chips

1 3/4 cups packed brown sugar , divided 1 cup all-purpose flour 6 tablespoons baking cocoa, divided 2 teaspoons baking powder 1/2 teaspoon salt 1/2 cup milk 2[...]

1 cup all-purpose flour 1/4 teaspoon baking soda 1/8 teaspoon salt 5 tablespoons butter 7 tablespoons unsweetened cocoa 2/3 cup granulated sugar 1/3 cup[...]

1 cup sugar 1/2 cup Dutch-processed cocoa powder 1 cup all-purpose flour 2 teaspoons baking powder 1/4 teaspoon salt 1/2 cup milk 4 tablespoons unsalted[...]

1 1/2 cups butter , melted, plus 1 tablespoon butter , melted, divided 1 cup unsweetened cocoa powder 2 1/4 cups sugar 5 large eggs 1 tablespoon vanilla[...]