1 c. butter (half of it oil)
1/2 c. brown sugar
1 egg
1/2 tsp. salt
1 tsp. cream of tartar
1/4 c. peanut butter, chocolate chips, nuts, or cherries (optional)
1/2 c. sugar
2 c. flour
1 tsp. baking soda

Cream the butter, brown sugar, and white sugar. Blend the egg, salt, cream of tartar, soda, and flour. Mix together. Add optional items now. Bake at 375 degrees for 10 minutes.