My father in law makes these cookies all the time and they are my favorite! So, I started making them too. Here’s the recipe:
1 cup butter, at room temp
1 cup brown sugar
3/4 cup white sugar
1 cup peanut butter (I use crunchy)
1 1/2 cups of flour
2 tsp baking soda
1 tsp salt
1 cup quick cooking oats
Cream together butter,sugar, eggs, and peanut butter. Add dry ingredients. Mix. Add oats last, and mix again. Bake at 350° for 10 minutes. Do not overbake.
These cookies really spread, so I only put 9 to a cookie sheet.