Chewy Peanut Butter Blondies

1 cup peanut butter
2/3 cup margarine, softened
1-1/3 cups white sugar
1 cup packed brown sugar
4 egg
1 teaspoon vanilla extract
2 cups all-purpose flour
2 teaspoons baking powder
1/2 teaspoon salt
1 cup semi-sweet chocolate chips


1. Preheat oven to 350 degrees F (175 degrees C ). Grease a 9x9 inch baking pan. *recipe has been doubled, larger pan is needed
2. In a medium bowl, cream together peanut butter and margarine. Gradually blend in the brown sugar, white sugar, eggs, and vanilla; mix until fluffy. Combine flour, baking powder, and salt; stir into the peanut butter mixture until well blended.
3. Bake for 30 to 35 minutes in preheated oven, or until the top springs back when touched. Cool, and cut into 32 squares.