There’s something so nostalgic about a classic M&M’s cookie, but you know I had to give it the signature "Sasha" upgrade. These Pastel M&M's Cookies are everything a cookie should be—chewy, buttery, and bursting with colorful, crunchy candy-coated chocolate.

To get that deep flavor, I’ve crafted this dough with rich brown butter, dark brown sugar, and a touch of cookie butter for extra warmth. Then, we’re loading it up with crushed M&M's, whole candies, and my favorite part: homemade chocolate bark. They bake up perfectly soft in the center with those golden, crisp edges and melty chocolate pockets we all love. These are fun, nostalgic, and pure bakery-style perfection.

Highlights Of This Recipe

Deep Flavor Profile: The combination of brown butter and Biscoff cookie butter creates a rich, toasted caramel base.
Textural Variety: Features soft centers, golden edges, and multiple layers of crunch from the candy coating and homemade chocolate bark.
Custom Chocolate Bark: Unlike standard cookies, these use a homemade M&M's bark that creates massive pockets of melty chocolate.
Perfectly Pastel: A vibrant, nostalgic aesthetic that makes them ideal for spring gatherings or themed parties.

Essential Prep for Success

Cool the Butter: Ensure your brown butter is fully cooled before starting the dough to prevent the sugars from melting prematurely.
Chill Time is Non-Negotiable: For the best flavor development and to prevent over-spreading, chill the dough for at least 1 hour (or overnight for peak results).
Prep the Bark Early: Make the M&M's bark first so it has time to fully set in the fridge before you chop it and fold it into the dough.

Yield: Approximately 10–12 cookies if using a large scoop (about 80 g–90 g per cookie)

Ingredients

Cookie Dough

100 g brown butter, fully cooled
1 tsp honey
135 g dark brown sugar
40 g granulated sugar
38 g Biscoff butter
1 large egg
1 egg yolk
½ tbsp vanilla extract
165 g all-purpose flour
½ tsp baking soda
½ tsp baking powder
½ tsp salt
70 g crushed M&M's
100 g whole M&M's
210 g M&M's bark, chopped

M&M's Bark

210 g dark chocolate
100 g crushed M&M's
100 g whole M&M's

Instructions

Make the M&M's Bark

Melt the dark chocolate until smooth.
Let the chocolate cool until it is close to room temperature but still fluid.
Stir in the crushed and whole M&M's.
Pour onto a parchment-lined baking sheet and spread into a thin, even layer.
Chill in the fridge until fully set.
Chop into pieces and keep chilled until ready to use.

Make the Cookie Dough

In a bowl, whisk together the flour, baking soda, baking powder, and salt. Set aside.
In a separate bowl, cream together the cooled brown butter, honey, dark brown sugar, and granulated sugar until combined and slightly lightened.
Add the egg, egg yolk, cookie butter, and vanilla.
Mix until smooth, glossy, and slightly fluffy.
Add the dry ingredients and mix until a soft cookie dough forms.
Fold in the crushed and whole M&M's, and the chopped bark.
Scoop the dough into balls and place onto a lined baking sheet.
Chill for at least 1 hour. Overnight is even better for flavor and texture. If chilling overnight, cover tightly.

Bake

Preheat oven to 350°F and line a baking sheet with parchment paper.
Space the chilled cookie dough balls apart on the baking sheet.
Bake for 12–14 minutes, depending on your preferred doneness. Bake closer to 12 minutes for softer centers, or 14 minutes for more set edges.
Remove from the oven and "scoot" the cookies with a circular cutter or glass while warm for perfectly round edges.
Let cool on the baking sheet before moving.

Secrets for the Perfect Recipe

The "Scoot" Technique: Immediately after taking the cookies out of the oven, use a large round cookie cutter to move in a circular motion around the cookie. This pushes in any stray edges for a perfect bakery-circle.
Topping for Aesthetics: For the prettiest cookies, press a few extra pieces of bark or whole M&M's on top right after baking while the dough is still soft.
Dark Brown Sugar: Use dark brown sugar rather than light for a higher molasses content, which contributes to that signature chewy texture.

FAQs About Pastel M&Ms Cookies

Q. Can I use regular butter instead of brown butter?

You can, but you will lose the nutty, toasted depth of flavor that defines this recipe. If you use regular butter, ensure it is softened to room temperature.

Q. How do I store these?

Store in an airtight container at room temperature for up to 3 days. They are best enjoyed slightly warm when the chocolate pockets are still melty.

Q. Why did my cookies spread too much?

This usually happens if the butter was still warm when mixed or if the dough wasn't chilled long enough. Make sure your dough is cold when it hits the oven!

Show Me Your Work!

I love seeing how your bakes turn out! If you make these Pastel M&M's Cookies, please tag @sashacakeschicago on Instagram or share a photo in the comments below. Seeing your beautiful creations is the best part of my day!

If you loved making this recipe, there’s so much more waiting for you in my book,Baking Magic: Awaken Your Inner Pastry Chef. It’s packed with simple tricks, pro tips, and show-stopping recipes to help you create unforgettable treats with ease.

Grab your copy on Amazon here and awaken your inner pastry chef today! 🍰✨

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