2-1/2 cups all-purpose flour
1/2 teaspoon soda
1 teaspoon baking powder
1/2 cup margarine
1/2 cup butter
1 cup granulated sugar
1 cup moist brown sugar
2 eggs, beaten slightly
1 cup peanut butter
2 teaspoons vanilla

Sift flour, measure and resift 3 times with soda and baking powder. Cream margarine and butter, then add sugars and cream until well blended but not fluffy. Beat in eggs, peanut butter and vanilla. Mix thoroughly. Add flour. Knead to form a smooth dough. Divide into 4 parts and roll each part into a roll about 1 inch in diameter. Cut into 1 inch lengths. Roll pieces in palms of hands to form smooth balls. Lay on ungreased cookie sheets, 1 inch apart. Press with tines of fork to make criss-crosses. Bake in a moderate oven (375 deg.) 10 to 12 minutes.

Makes about 7 dozen cookies.