M&M Oatmeal Bars

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These M&M Oatmeal bars are incredibly easy to make and are always perfectly moist! Warning: they will be gone before you get your hands on one if you aren’t careful!

m&m oatmeal bars

These M&M Oatmeal Bars were almost impossible to get a photo of. It seemed a soon as I cut them they started flying off the platter! Fortunately, these things are a snap to make. They may actually be the easiest cookies I bake, come to think of it. I first discovered these M&M Oatmeal Bars two years ago. It was ten o’clock at night and I had already gone to bed. Suddenly, the thought occurred to me that I really should make my daughter’s preschool teacher something because I hadn’t baked for her in a while.

I immediately thought to the Pioneer Baking Mix in my pantry as I had been cruising their website earlier for recipes. I was also curious as to what a cookie made with baking mix would taste like. Thirty minutes later, two pans of these sat cooling on the counter and I was in bed again, this time only dreaming of baking rather than getting up to actually do it. (**You can substitute Bisquick if you like.)

What You’ll Need to Make M&M Oatmeal Bars:

ingredients for m&m oatmeal bars

  • brown sugar (use light or dark – whichever you have on hand)
  • old-fashioned oats (you can also use quick oats and they work just fine!)
  • vanilla
  • Pioneer Brand baking mix
  • candy-coated chocolate candies
  • a stick of butter
  • one egg

How to Make M&M Oatmeal Bars:

put oats and brown sugar in a bowl

In a mixing bowl, place oats and brown sugar.

add egg to mix for m&m oatmeal bars

Add the egg.

melt butter in microwave and add to mixture

Melt butter in microwave and pour in.

add vanilla to m&m oatmeal bars recipe

Add vanilla.

add dry ingredients to m&m oatmeal bars

Mix all of that up!

add in m&m candies

Toss in your candies.

spray an 8x8 pan with cooking spray

Spray an 8×8 pan (this Caraway pan is AMAZING) with cooking spray.

pat out m&m oatmeal bars in the pan

Pat it out into your pan.

add more m&ms to the top

Then add some more M&Ms to the top and push them in a little bit. This is a great place to have your kids get involved!!

bake m&m oatmeal bars

Now bake the M&M Oatmeal Bars at 350 degrees for about twenty minutes. Mine always take about twenty five minutes.

cut and serve m&m oatmeal bars

Voila! Easy Peasey, delicious, buttery tasting, brown sugar lovin’, kid pleasin’, done in a jiffy even when you start them at ten o’ clock at night, COOKIES!

I just love my baking mix!

m&m oatmeal bars

*If you have a service member overseas, these M&M Oatmeal Bar cookies are my most requested recipe to send. They travel very well and stay moist. I’ve had packages take as long as three weeks to arrive, only still get rave reviews when I’d tucked these bars inside! If you can, send a package. It make a world of difference!

cut and serve m&m oatmeal bars

M&M Oatmeal Bars

These delicious M&M Oatmeal Bars are moist and tender, tasting of brown sugar and butter and dotted with candy coated chocolates.
Prep Time: 10 minutes
Cook Time: 30 minutes
20 minutes
Course: Dessert
Cuisine: American
Keyword: oatmeal
Servings: 4
Calories: 184kcal


  • 1/2 cup Rolled oats
  • 1/2 cup M & M candies
  • 1 cup Brown sugar packed (I use light or dark, whatever I have on hand)
  • 2 cup Pioneer Biscuit & Baking Mix
  • 1 Egg
  • 1/2 cup butter melted
  • 1 tsp Vanilla


  • Combine everything in a mixing bowl except candies. Mix until well blended. Stir in candies, reserving a few to place on top. Pat into greased 8x8 pan and bake at 350 for about twenty minutes. Allow to cool and cut into bars.


Calories: 184kcal
Tried this recipe?Mention @southernplate or tag #southernplate!

(Good luck being able to wait until they cool! These things smell amazing!)

You might also enjoy this recipe! Awesome Oatmeal Cookies

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  1. 5 stars
    These are more cake like. Very light. Unless you let them rest awhile (which I couldn’t wait too long) they will crumble. After letting them sit longer, they came out while holding shape. Very good.

  2. I suppose chocolate chips would do in place of the M&Ms though they would not be as colorful or crunchy. One of my grandsons is allergic to nuts and can’t have plain M&Ms because they are made on the same equipment as the ones with peanuts.

    I don’t know how I missed this recipe 10 years ago. Perhaps I overlooked it because of the M&Ms.

  3. Never tried these cookies, but will hopefully soon…..sounds really easy to make….. I love Christy’s recipes…..she uses whatever she has and does not have to have a certain brand and she says they come out the same…..she has some great recipes on here….

    Thanks for posting great recipes Christy….

  4. I pride myself on baking really fancy, made-from-scratch desserts with no boxed shortcuts…and yet this is the recipe that consistently gets the rave reviews. If you’re looking for a crowd pleaser, this is it for sure. I have made this recipe probably 100 times over the past few years, and people always rave about and remember it. AND it’s one of the easiest recipes you’ll ever make. Only tweak I make is using butter instead of margarine (just personal preference).

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