Peanutbutter Muffins

2 cups flour
1 teaspoon baking powder
½ teaspoon baking soda
½ teaspoon salt
¼ cup softened margarine or butter
¾ cup peanutbutter
1 cup sugar
2 eggs
1 cup milk
1 teaspoon vanilla
1 cup chocolate chips

Sift dry ingredients together.

Cream butter, peanutbutter and sugar together. Add eggs one at a time, beating until smooth. Stir in milk and vanilla.

Stir in dry ingredients just until moist. Overmixing makes the muffins heavy. Add the chocolate chips just before the dry ingredients are all moist.

Spoon into 18 large muffin cups. Bake in 350° oven about 20 minutes, until just golden.