Our basic version called for chocolate chips, but I like to pimp them out with Oreos, too.
1/2 cup packed brown sugar
1/2 cup sugar
1 tsp vanilla
1 1/2 cups flour
1 tsp baking soda
1 1/2 cups oatmeal
12 ounce package chocolate chips
About 12-15 Oreo cookies, cut into quarters
Cream butter and sugar until light and fluffy. Blend in eggs and vanilla. Add flour and baking soda. Mix well. Stir in oats, chips and Oreos. Spread into well-greased 13 x9 pan. Bake at 375 for 25-30 minutes.