1 cup packed brown sugar
1/2 cup white sugar
1/2 cup butter, softened
1 teaspoon vanilla extract
2 teaspoons baking soda
1 1/2 cups peanut butter
4 1/2 cups oats (quick cooking or old-fashioned)
1 cup semi-sweet chocolate chips
1 cup M&M’s chocolate candies
Preheat oven to 350 degrees F. Beat together butter and sugars. Add eggs, vanilla extract, and baking soda, and mix well. Mix in peanut butter until well-blended. Add oats and stir until combined. Mix in chocolate chips and M&M’s.
Drop cookies by ice cream scoopful (or normal sized) about 2 inches apart on an ungreased baking sheet. Bake in preheated 350 degree F oven for 15 to 20 minutes. Let cookies cool on baking sheets before moving to wire racks. Store in an airtight container.