How to Make It
Prepare Fudge Sauce.
Preheat oven to 350°.
To prepare brownies, coat bottom of an 8-inch square baking pan with cooking spray.
Combine butter and chocolate in a large microwave-safe bowl. Microwave at high 1 minute, and stir until melted. Add egg and egg white, stirring with a whisk. Stir in water and vanilla. Lightly spoon flour into dry measuring cups, and level with a knife. Combine flour, sugar, cocoa, and baking powder, and stir into chocolate mixture. Spread half of batter in bottom of prepared pan. Combine milk and candies in a small microwave-safe bowl. Microwave at high 1 1/2 minutes, and stir until melted. Drizzle caramel mixture over batter in pan; sprinkle with pecans. Drop remaining batter by tablespoonfuls over pecans. Bake at 350° for 35 minutes or until a wooden pick inserted in center comes out almost clean. Cool completely on a wire rack. Cut into 16 squares.
To prepare the sundaes, top each brownie with 1/4 cup frozen yogurt and 2 tablespoons Fudge Sauce.