Coconut-Chocolate Meringue Bites

3/4 c butter
1/2 c packed brown sugar
1/2 c granulated sugar
3 eggs, separated
1 tsp vanilla
2 c flour
1 tsp baking powder
1/4 tsp baking soda
1/4 tsp salt
6 oz semi-sweet chocolate pieces
1 c flaked coconut
3/4 c coarsely chopped nuts
1 c packed brown sugar

Heat oven to 350.  Grease a 9x13 pan.  Mix butter, 1/2 c brown sugar, granulated sugar, egg yolks and vanilla.  Beat 2 min at medium speed on mixer.  Blend flour, baking powder, soda and salt together; mix in thoroughly.  Spread or pat dough in pan.  Sprinkle with chocolate pieces, coconut and nuts.  Beat egg whites until frothy; add 1 c brown sugar gradually; beat until stiff.  Spread over nuts.  Bake 35-40 min.  Cool; cut into bars.