7-Layer Rainbow M&M Cookie Bars

Meet your new favorite indulgence: 7-layer Cookie Bars loaded with vibrant M&Ms. Perfect for any occasion, these decadent bars will leave everyone asking for more. With their chewy layers and colorful candy pieces, these bars are a delightful treat that both kids and adults will love. Follow this easy recipe to create a batch of these irresistible cookie bars, and soon you’ll see why they’re a crowd favorite!

Growing up, baking day was always a cherished occasion in our household. My grandmother would fill the kitchen with the smell of freshly baked treats, and these colorful cookie bars quickly became a family staple. I remember sneaking M&Ms from the bowl while she wasn’t looking, eagerly waiting for the moment we could finally sink our teeth into the gooey perfection. Now, I’ve continued this tradition with my own kids, who love to help scatter the vibrant candies over the top. Each bite takes us back, weaving our memories together with every layer.

Why You’ll Love This Recipe

This recipe is a true standout thanks to its colorful presentation and mouthwatering layers. It’s incredibly easy to make, requiring just one pan and no special equipment. The combination of sweetened condensed milk, chocolate chips, and the crunch of M&Ms creates a texture that is both indulgent and satisfying. Moreover, these bars are customizable to suit any occasion or holiday, simply by swapping the colors of the candy.

Ingredients Notes

We use standard pantry ingredients, making this a convenient bake. Opt for high-quality chocolate chips for a richer taste, and don’t skimp on the sweetened condensed milk, which acts as the glue that holds the layers together. Feel free to choose any type of M&Ms, but keep the seasons in mind for themed variations. If you prefer a slightly less sweet version, consider using dark chocolate chips.

Recipe Steps

Step 1

Preheat your oven to 350°F (175°C) and line a 9×13-inch baking dish with parchment paper. This makes for easier removal later.

Step 2

Prepare the crust by mixing melted butter with crushed graham crackers. Press this mixture firmly into the bottom of your baking dish to form an even layer.

Step 3

Pour sweetened condensed milk evenly over the crust. This will soak into the layers while baking, adding moisture and sweetness.

Step 4

Sprinkle chocolate chips, chopped nuts, shredded coconut, and M&Ms uniformly over the condensed milk. Make sure each bite will get a bit of everything!

Step 5

Bake for 25–30 minutes, or until the edges are golden brown. Allow the bars to cool in the pan before lifting them out using the parchment paper for easy cutting.

Storage Options

Store any leftovers in an airtight container at room temperature for up to three days. For extended freshness, place them in the fridge for up to a week. To freeze, wrap individual bars in plastic wrap and store in a ziplock bag in the freezer for up to three months. Simply thaw in the refrigerator overnight and enjoy as if freshly baked!

Variations & Substitutions

For those with dietary restrictions, consider using gluten-free graham crackers or dairy-free chocolate chips. Experiment with flavors by adding a pinch of cinnamon to the crust or substituting butterscotch chips for a sweeter twist. For a festive look, swap regular M&Ms for holiday-themed ones to match the occasion.

Serving Suggestions

These cookie bars are perfect for potlucks, school events, or simply as a treat with your afternoon tea. Pair them with a scoop of vanilla ice cream for an extra special dessert, or enjoy with a cup of hot chocolate during the colder months. They’re guaranteed to be the star of any gathering!

Frequently Asked Questions

Can I make these cookie bars ahead of time?
Yes, these bars are a perfect make-ahead dessert. Since they store well, you can bake them a day or two in advance. Simply keep them in an airtight container at room temperature, ensuring they retain their freshness.

Can I omit any ingredients I don’t like?
Absolutely! These bars are highly customizable. If you’re not a fan of coconut or nuts, simply leave them out or substitute with more chocolate or a different type of candy. Experimentation is encouraged to find your ideal combination.

How do I know when the bars are done baking?
The edges should be golden brown and the center should be mostly set, though it will firm up as it cools. Be cautious not to overbake, as the residual heat will continue to cook the bars slightly once removed from the oven.