1/2 cup sugar
1/2 cup packed brown sugar
1/2 cup peanut butter
1/4 cup shortening
1/4 cup margarine OR butter, softened
1 egg
1 1/4 cups flour
3/4 teaspoon baking soda
1/2 teaspoon baking powder
1/4 teaspoon salt

mix sugars, peanut butter, shortening and egg. stir in remaining ingredients. cover and refrigerate at least 3 hours. heat oven to 375°. shape dough into 1 1/4″ balls. place about 3″ apart on ungreased cookie sheet. flatten in crisscross pattern with fork dipped in flour. bake until light brown, 9-10 minutes. cool 2 minutes. remove from cookie sheet.