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monster cookie bar on a white plate

Best Monster Cookie Bars (without butter)

These are, oh my! SO GOOD! Monster Cookies are known mainly for their oatmeal, peanut butter, M & Ms, and chocolate chips for extra chocolaty goodness. These cookie bars are unique in that they use oil instead of butter. I believe this is a big reason why they are so soft and chewy, moist and crumbly. 
Prep Time 10 minutes
Cook Time 20 minutes
Total Time 30 minutes

Ingredients
  

  • 2 cups flour
  • ½ cup white sugar
  • 1 cup brown sugar gently packed
  • 1 tsp baking soda
  • 1 tsp baking powder
  • 1 tsp salt
  • 1 1/2 cups quick cook oatmeal
  • 1 cup rice krispies
  • 1/2 cup chocolate chips
  • ¾ cup peanut butter chip
  • ¾ cup M & M candies
  • 1 cup oil I use Canola oil
  • 2 eggs
  • 1 tbls vanilla

Instructions
 

  • Preheat the oven to 350 degrees. Grease a 9 x 13 cake pan.
  • In a large mixing bowl, stir the dry ingredients together and set aside.
  • In a smaller mixing bowl combine the liquid ingredients with a fork (do not beat the eggs, just stir until combined).
  • Add the wet ingredients to the dry ingredients and stir until combined.
  • Pour into the greased cake pan and pat down gently. Bake for about 20 minutes or until edges are lightly browned.

Notes

The bars slide out of the pan easily because of the oil in the dough and the greased cake pan. After the bars are baked and cooled you can store them on the counter for 3 or 4 days. Or freeze them for up to 3 months. Make sure they are tightly sealed.
If you want to make sure plenty of color is visible from the M&M's, set aside 1/4 cup of the M&M's to gently press on top of the bars before baking.
Try different candy flavors like Reese's pieces M&M's or crushed Heath bars. The chocolate chips can also be swapped out for butterscotch, milk chocolate, or white chocolate. 
Buy M&M colors or sprinkles that match the holiday, sporting event, birthday party, or graduation party.