5.0 from 12 votes
Halloween M&M Cookie Bars
These Halloween M&M cookie bars make a deliciously festive treat with the addition of Halloween M&Ms and Halloween sprinkles mixed into a delicious traditional cookie base.
Prep Time
10 mins
Cook Time
10 mins
cooling time
1 hr
Total Time
1 hr 37 mins
Servings: 24 bars
Calories: 250 kcal
Course:
Dessert
Cuisine:
American
Ingredients
- 2 ¼ cups all-purpose flour
- 1 tsp salt
- ½ tsp baking soda
- ¾ cup unsalted butter softened
- 1 cup granulated sugar
- ½ cup light brown sugar packed
- 2 large eggs
- 1 tsp pure vanilla extract
- 1 ¼ cup Cookies & Cream M&Ms
- 1 ½ cups Oreos chopped and divided
- Halloween sprinkles
Instructions
- Start by preheating your oven to 350 degrees and lining a 9×13 baking dish with parchment paper.
- Whisk dry ingredients – flour, salt, and baking soda – together in a bowl then set that bowl aside.
- In the bowl for a stand mixer, cream the butter and sugars together until well combined.
- Add the eggs and vanilla then beat well, scraping down the sides of the bowl with a spatula if necessary.
- Slowly add in the flour mixture and mix until just combined; don’t over mix.
- Finish the dough by folding in one cup of the M&Ms and one of the chopped Oreos.
- Spread the cookie dough batter evenly into the prepared pan and top evenly with the remaining M&Ms, Oreo pieces, and sprinkles.
- Bake in the preheated oven for 24-27 minutes, beginning to check around 20 minutes and remove when the bars are cooked.
Cup of Yum
Notes
- Make sure to bake these in a 9×13 baking pan. They’re too thick to cook in a smaller pan and won’t bake properly without being able to spread out and expand.
- Store leftover bars (if there are any) in an airtight container for up to three days.
- Ingredient Notes:
- M&Ms – this recipe uses the Halloween Cookies and Cream M&Ms but it would be fine with traditional M&Ms as well, just try to find the Halloween colored ones!
- Oreos – I used regular Oreos in this recipe but Double Stuffed would work fine as well. You want your Oreos to be chopped into bite-sized chunks. One cup of the Oreos will go into the cookie dough and the rest will be added on top of the M&M cookie bars.
- Sprinkles – any kind of Halloween sprinkles can be used, I just used what I had on hand!
Nutrition Information
Calories
250kcal
(13%)
Carbohydrates
36g
(12%)
Protein
3g
(6%)
Fat
11g
(17%)
Saturated Fat
6g
(30%)
Polyunsaturated Fat
1g
Monounsaturated Fat
2g
Trans Fat
1g
Cholesterol
31mg
(10%)
Sodium
181mg
(8%)
Potassium
47mg
(1%)
Fiber
1g
(4%)
Sugar
24g
(48%)
Vitamin A
222IU
(4%)
Vitamin C
1mg
(1%)
Calcium
24mg
(2%)
Iron
2mg
(11%)
Nutrition Facts
Serving: 24bars
Amount Per Serving
Calories 250
% Daily Value*
| Calories | 250kcal | 13% |
| Carbohydrates | 36g | 12% |
| Protein | 3g | 6% |
| Fat | 11g | 17% |
| Saturated Fat | 6g | 30% |
| Polyunsaturated Fat | 1g | 6% |
| Monounsaturated Fat | 2g | 10% |
| Trans Fat | 1g | 50% |
| Cholesterol | 31mg | 10% |
| Sodium | 181mg | 8% |
| Potassium | 47mg | 1% |
| Fiber | 1g | 4% |
| Sugar | 24g | 48% |
| Vitamin A | 222IU | 4% |
| Vitamin C | 1mg | 1% |
| Calcium | 24mg | 2% |
| Iron | 2mg | 11% |
* Percent Daily Values are based on a 2,000 calorie diet.