Irresistible Brownies

3/4 cup ( 1 1/2) stick butter
2 Cups Sugar
1 1/2 cups all-purpose flower
1/2 cup cocoa
1/2 Tsp baking powder
1/2 Tsp Salt
4 Eggs
2 Tsp Vanilla extract
2 Cups Semi-sweet Choc morsels (divided)
1/2 cup nuts (optional)

Preheat oven to 350. Melt butter, Add sugar, flour, cocoa, baking powder, salt, eggs and vanilla extract. Stir w/ spoon until batter is well blended and smooth. Stir in 1 1/2 cups semi-sweet choc morsels and nuts if desired. Spread into 13x9 inch pan. Sprinkle w/ remaining 1/2 cup semi-sweet choc. morsels. Bake 30-35 Minutes until set. Cool on wire rack. Cut into 2-Inch squares.