Brown butter starts this recipe off, filled with lots of oats, M&M's and chocolate chips they are the perfect cookie. Bite-size these Brown Butter M&M Oat Cookies are dangerous to have around!

Two weekends ago I went down to San Diego for a Bachelorette night for one of my favorite bunnies ever! Ashley and I became friends through work and we have all become a little family at our pub. This cutie pie is getting married in about a month and I am so happy for her!
I went with 3 other girls, and since it was a road trip (more like 2 hours) I knew I needed snacks cookies for the drive. And since brown buttah is mah thing and I had a new bag of mini m&m, brown butter oat m&m cookies were made.
They were so good. Perfect size. Perfect texture. And chock a block full of m&ms and chocolate, a definite must in a cookie.
These cookies were fabulous, even at three o'clock in the morning. I won't lie this is great after the club snack 😉 This and a fresh quesadilla that is!
Check out this post on my Cookie Baking Tips
★★★★★ Please let me know if you make this recipe by leaving a star rating and comment below!
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Brown Butter M&M Oat Cookies
Brown butter starts this recipe off, filled with lots of oats, M&M's and chocolate chips they are the perfect cookie. Bite-size these Brown Butter M&M Oat Cookies are dangerous to have around!
- Total Time: 32 minutes
- Yield: 3 dozen cookies 1x
Ingredients
- 8oz ( 1 cup/ 2 sticks) Unsalted Butter, browned and set back to solidify
- 250 grams ( 2 cups) All-Purpose Flour
- 100 grams (1 cup) Quick Oats
- 1 ½ tsp cornstarch
- ½ tsp baking powder
- 1 tsp salt
- 50 grams (½ cup) granulated sugar
- 150 grams (¾ cup) dark brown sugar, packed
- 1 tbsp vanilla extract
- 1 large egg, at room temp.
- 1 large egg yolk, at room temp.
- 1 cup mini m&ms
- ¾ cup milk chocolate chips
Instructions
- In a saucepan brown your butter. Let cool slightly then place in fridge or freezer until butter is back at a softened state. (See note)
- Preheat oven to 350F and line baking sheet with a silpat liner, if using.
- Whisk the flour, oats, cornstarch, baking powder and salt. Set aside.
- In the bowl of an electric mixer cream the butter and sugars for a few minutes. Add in egg, yolk, and vanilla. Mix until fully incorporated. Slowly add in dry ingredients, mixing until no flour streaks remain. Mix in M&M's and chocolate chips.
- Scoop 1 ½ tablespoon size cookies and bake for 9-12 minutes. Until cookies are golden brown around the edges but still look a little underdone in the middle. Let cool on tray for 5 minutes then transfer to a wire rack to cool completely. Store in an airtight container for 3 days.
Notes
I personally brown butter in batches and keep some in fridge but if you can do it this way too.
- Prep Time: 20
- Cook Time: 12
- Category: Dessert
- Method: Bake
- Cuisine: American
Keywords: m&m oat cookie recipe, brown butter desserts
Kayle (The Cooking Actress) says
Aw such fun!!
omg these cookies look PERFECT! You know how I love brown butter too and the texture of these cookies just...mmmm
Elizabeth says
Thanks Kayle they were!!
Dorothy @ Crazy for Crust says
I want to swim in brown butter. These are amazing!
Elizabeth says
Thanks Dorothy 🙂
Gloria @ Simply Gloria says
Snacking on a 30 minute drive is always fun! These would be perfect to even pack up for our bike rides to the park. All the kids would love these there. Love how colorful these cookies are, too!
PS..good idea about browning the butter ahead of time and setting in the fridge! Didn't even think of that. You rock, Elizabeth! (Sounded like a fun girls trip, btw!)
Elizabeth says
Yes it saves so much time! 🙂
Laura Dembowski says
These look like the perfect cookies! So thick and puffy and full of yummy ingredients.
Elizabeth says
Thick cookies are my favorite 🙂
Jocelyn@BruCrew Life says
Ohhh brown butter is sooo good! 😉 I bet these were just heavenly!!
Elizabeth says
Thanks Jocelyn they were 🙂
Court Star @ StarSystemz says
Ok so I am feeling like a COOKIE MONSTER right now and wanting to gooblle these pretties up! Can't wait to see you, MISS YOU!