Pecan Coffee Cake

1 3/4 c SUGAR

3/4 c BUTTER

3 c FLOUR, SIFTED

1 T BAKING POWDER

1 t SALT

1 1/8 c MILK

4 EGG WHITES

1 c BROWN SUGAR

2 T CINNAMON

3/4 c FLOUR

3/4 c BUTTER

2 c PECANS

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-- TOPPING: Cream sugar and butter until soft and smooth. Sift together flour, baking powder, and salt. Add sifted ingredients alternately with milk. Fold in egg whites beaten stiff. Pour into large baking pan. Mix topping together until it forms pea-sized crumbs. Blend in pecans. Spread over the top of batter and bake at 350 degrees F for 40-50 minutes. Cut into squares.