Peanut Butter Cookies
1 c. butter
2/3 c. chunky peanut butter
1/3 c. 10-X sugar (sifted after measuring if it's lumpy)
1 c. (tightly packed) brown sugar
1 large egg
1 large egg yolk
2 1/2 tsp. vanilla
2 1/2 c. all-purpose flour
1 1/4 tsp. baking powder
1/2 tsp. baking soda
1/4 tsp. salt
1 c. chocolate chips
10 peanut butter cups, chunked to about 1/2 size
Have all ingredients at room temperature.
Mix together dry ingredients (flour, baking powder, baking soda and salt) until thoroughly blended. Beat butter, peanut butter, 10-X sugar and brown sugar on medium speed until well blended. Beat egg, egg yolk and vanilla until well mixed. Add to peanut butter mixture. Stir, by hand, the flour mixture into the peanut butter mixture until well blended and smooth. Add the chips and peanut butter cup chunks, mixing carefully, by hand.
Let the dough stand for 5 minutes to firm slightly.
Scoop 1" pieces of dough and roll with hands into balls. The dough will be fairly soft. Place the balls on a greased baking sheet about 2" apart. Press the balls in the center with the tines of a fork and flatten them slightly.
Bake 9-12 minutes @ 350 until slightly brown at the edges. Transfer to racks and cool.