Ingredients
Wet Ingredients
- 3/4 cup (170 g) unsalted butter, room temperature
- 1 cup (200 g) light brown sugar, packed
- 1/4 cup (50 g) granulated sugar
- 1/2 cup smooth peanut butter, room temperature
- 1 large egg, room temperature
- 1 egg yolk, room temperature
- 1 teaspoon vanilla extract
Dry Ingredients
- 2 1/4 cups (280 g) all-purpose flour, spooned and leveled
- 3/4 cup (60 g) quick oats
- 1 teaspoon baking soda
- 1/2 teaspoon kosher salt
Add-ins
- 3/4 cup to 1 cup semi-sweet chocolate chips
- 1/2 cup white chocolate chips
- 1 cup M&M candies
Instructions
- Preheat and Prepare: Preheat your oven to 350°F (175°C). Line two baking sheets with parchment paper and set them aside for later.
- Cream Butter and Sugars: In the bowl of an electric mixer fitted with a paddle attachment, cream together the unsalted butter, light brown sugar, granulated sugar, and smooth peanut butter on medium-high speed for about 3 minutes until the mixture is light and fluffy. Scrape down the sides of the bowl to ensure even mixing.
- Add Eggs: Add the whole egg followed by the egg yolk to the creamed mixture. Mix on low speed until fully combined.
- Incorporate Vanilla: Pour in the vanilla extract and mix until it’s fully incorporated into the mixture.
- Combine Dry Ingredients: In a separate bowl, whisk together the all-purpose flour, quick oats, baking soda, and kosher salt until evenly combined.
- Mix Dry into Wet: Slowly add the dry ingredient mixture to the wet ingredients in the mixer. Mix on low speed just until the dough starts to come together and a few streaks of flour remain. Avoid overmixing to keep cookies tender.
- Fold in Add-ins: Remove the bowl from the mixer. Using a spatula, gently fold in the M&M candies, semi-sweet chocolate chips, and white chocolate chips until evenly distributed throughout the dough.
- Scoop Dough: Using a two-tablespoon cookie scoop, portion the cookie dough onto the prepared baking sheets. For even baking, weigh each dough ball; the recipe’s cookies are 2 ounces each.
- Bake and Flatten Cookies: Bake for 9 to 11 minutes, or until the edges are lightly golden and the centers remain slightly pale and puffy. Halfway through baking, carefully lift the baking sheet a few inches above the oven rack and drop it to help flatten the cookies and create a thin, chewy texture. If the cookies remain mounded at the end of baking, tap the baking sheet firmly on the countertop once removed from the oven to encourage melted chocolate pools.
- Cool: Remove the cookies from the oven and let them cool on the baking sheets for 10 minutes. Then transfer them to a wire rack to cool completely before serving.
Notes
- Use room temperature ingredients to ensure proper mixing and texture.
- Dropping the baking sheet mid-bake helps achieve a thinner, chewier cookie.
- For consistent size and even baking, weigh each cookie dough ball at about 2 ounces.
- Store cookies in an airtight container to maintain freshness for up to 5 days.
- You can substitute M&Ms with other colorful candy-coated chocolates for different occasions.
- Prep Time: 10 minutes
- Cook Time: 11 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American