Monster Cookie Muffins are an easy breakfast or snack recipe made with cake mix.

The peanut butter oatmeal muffins are loaded with mini M&Ms.

Printable Recipe Card with a Full List of Ingredients and Instructions is Located at the Bottom of the Post.

Be sure to read through the entire post so that you don’t miss out on any important tips and tricks!

To make these monster cookie muffins, I started by dumping some peanut butter, eggs and milk into a large mixing bowl.

I used an electric mixer to combine the ingredients until smooth.

Then I added some yellow cake mix and quick oats to the bowl.

I continued mixing with the electric mixer until the ingredients were fully combined.

Then I added some mini M&Ms to the bowl and used a rubber spatula to stir them into the muffin batter.

I spooned the peanut butter oatmeal muffin batter into greased muffin tins, filling each cup about 2/3 of the way.

Then I baked the muffins until a toothpick inserted in the center of a muffin came up clean.

I allowed the muffins to cool for a few minutes before removing them from the muffin tins.

These Monster Cookie Muffins are a fun snack idea inspired by the classic Monster Cookie.

Your kids will love these peanut butter oatmeal muffins loaded with mini M&Ms.

CLICK HERE to save this recipe to Pinterest!

Monster Cookie Brownie Cups are an easy dessert recipe using boxed brownie mix and homemade oatmeal peanut butter cookie dough. These chewy brownie cups are loaded with mini M&Ms.

Another delicious monster cookie recipe. Check out these Monster Cookie Brownie Cups!

These Peanut Butter Cup Stuffed Monster Cookie Cups are a fun and easy dessert recipes. The oatmeal peanut butter cookies are loaded with mini M&Ms and each cookie cup has one mini Reese's peanut butter cup pressed into the center.

Be sure to also check out these Peanut Butter Cup Stuffed Monster Cookie Cups!

Peanut Banana Muffin with chocolate chips.

Another cake mix muffin recipe. Check out these Cake Mix Peanut Butter Banana Muffins!

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Monster Cookie Muffins

Name: Monster Cookie Muffins
Prep time: 10 min
Cook time: 16 min
Total time: 26 min
Yield: 24
Cuisine: American
Ingredients: 1 cup smooth peanut butter; 3 eggs, large; 1 cup milk; 15.25 oz box yellow cake mix; 2 cups quick oats; 1 cup mini M&Ms

Yield: 24 muffins

Prep Time: 10 minutes

Cook Time: 16 minutes

Total Time: 26 minutes

Monster Cookie Muffins are an easy breakfast or snack recipe made with cake mix. These peanut butter oatmeal muffins are loaded with mini M&Ms.

Ingredients

1 cup smooth peanut butter
3 eggs, large
1 cup milk
15.25 oz box yellow cake mix
2 cups quick oats
1 cup mini M&Ms

Instructions

Preheat oven to 375F.
Dump the peanut butter, eggs and milk into a large mixing bowl.
Use an electric mixer to combine the ingredients until smooth.
Add the cake mix and quick oats to the bowl and continue mixing with the electric mixer until fully combined.
Add the mini M&Ms to the bowl and stir them into the batter with a rubber spatula.
Spoon the muffin batter into greased muffin tins, filling each cup about 2/3 of the way.
Bake the muffins until a toothpick inserted in the center comes up clean. 14-16 minutes.
Allow the muffins to cool for a few minutes before removing them from the muffin tins.
Serve and enjoy!

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Erin

Hi! My name is Erin and I have been here since 2016 sharing simple family friendly recipes that can be prepared by any home cook. Get ready to whip up delicious meals in no time!

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