Rainbow M&M Frosted Cookie Bars Recipe

Name: Rainbow M&M Frosted Cookie Bars
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: FOR THE COOKIE BARS:; 3/4 cups Butter Flavored Crisco; 1-1/4 cup Brown Sugar; 2 Tablespoons Milk; 1 Tablespoon Vanilla Extract; 1 whole Egg; 1-3/4 cup Flour; 1 teaspoon Kosher Salt; 1 teaspoon Baking Soda; 1 pinch Nutmeg; 1/2 teaspoons Cinnamon; 1 bag (12 Oz. Size) Milk Chocolate Morsels; 1-1/2 cup M&Ms; FOR THE FROSTING:; 1 cup Butter, Softened; 5-1/2 cups Powdered Sugar; 2 teaspoons Vanilla Extract; 1-1/2 Tablespoon Meringue Powder; 1/4 cups Milk (or As Needed); Gel Food Coloring, Various Colors

Servings: persons

FOR THE COOKIE BARS:
3/4 cups Butter Flavored Crisco
1-1/4 cup Brown Sugar
2 Tablespoons Milk
1 Tablespoon Vanilla Extract
1 whole Egg
1-3/4 cup Flour
1 teaspoon Kosher Salt
1 teaspoon Baking Soda
1 pinch Nutmeg
1/2 teaspoons Cinnamon
1 bag (12 Oz. Size) Milk Chocolate Morsels
1-1/2 cup M&Ms
FOR THE FROSTING:
1 cup Butter, Softened
5-1/2 cups Powdered Sugar
2 teaspoons Vanilla Extract
1-1/2 Tablespoon Meringue Powder
1/4 cups Milk (or As Needed)
Gel Food Coloring, Various Colors

1
For the cookies:
2
Combine Crisco, sugar, milk and vanilla. Beat in egg. Add dry ingredients and combine thoroughly. Add in morsels and m&ms.
3
Press into bottom of baking sheet (with sides). Bake in a 375u00b0F oven for about 25 minutes. Center may appear to be a little undercooked; let it rest in baking pan until completely cooled.
4
For the frosting:
5
Beat all ingredients together (except gel food coloring) for 5 minutes until fluffy. Add more milk if necessary for desired consistency.
6
To frost cookie bars with rainbow pattern, open a large (16-inch) decorator bag (I used disposable). Taking your gel food coloring, make stripes from the tip of the bag up 3/4 of the way. Repeat with other colors. Spoon your frosting into the bag carefully, twist the top and secure.
7
Cut cookie bars into desired-sized pieces. Pipe frosting onto individual bars. The rainbow colors may be more pronounced with the first bars, and become lighter in color with the remainder. Enjoy!
8
(Frosting technique from Tracey's Culinary Adventures.)

1585

kcal

Calories

Fat

187

Carbs

Protein

Fat Carbs Protein

* Per serving · 4 servings · Values may vary.

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Preheat the oven fully and bake on the middle rack for the most even results.
Check for doneness a few minutes early — a toothpick in the center should come out with just a few moist crumbs.
Let it cool before slicing so it sets properly and holds its shape.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Use a neutral oil or a plant-based spread in place of butter for a dairy-free version.
Brown sugar instead of white sugar adds a deeper, more caramel-like flavor.
A good 1:1 gluten-free flour blend works well if you need a gluten-free version.

No specific allergen information. Please check the ingredient list for possible allergens.

My Personal Notes

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How did you like this recipe?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

You need 20 ingredients. The key ingredients include: FOR THE COOKIE BARS:, 3/4 cups Butter Flavored Crisco, 1-1/4 cup Brown Sugar, 2 Tablespoons Milk, and more.

Yes, Rainbow M&M Frosted Cookie Bars falls under the Baking & Desserts category and is a great choice for this type of meal.

Store in an airtight container at room temperature for up to 3–5 days. For longer storage, freeze for up to 3 months — no need to refrigerate or reheat.

That's it — enjoy your meal!

Rainbow M&M Frosted Cookie Bars

Tips for the best results

Variations & substitutions

My Personal Notes

How did you like this recipe?

Frequently Asked Questions