No-Bake Monster Cookies Recipe

Introduction

No-Bake Monster Cookies are a delightful treat packed with peanut butter, oats, chocolate, and colorful M&M’s. These bars come together quickly without any oven time, making them perfect for an easy, crowd-pleasing dessert or snack.

A stack of three layered treats sits on a white plate with a white marbled background. Each square treat has two visible layers: a thick, textured golden oat base mixed with small chocolate pieces and colorful candy-coated chocolates in red, blue, green, and orange, and a smooth, dark brown chocolate top layer. The chocolate layer shows slight ridges and is decorated with whole coffee bean-like chocolates and scattered colorful candy shells. The edges of the top layer are slightly uneven, showing the thickness and richness of the chocolate. photo taken with an iphone --ar 4:5 --v 7

Ingredients

  • 6 tablespoons butter, softened
  • 6 tablespoons sugar
  • ¼ cup brown sugar
  • ¾ cup creamy peanut butter
  • 6 tablespoons quick cooking oats, pulsed in food processor
  • 1 teaspoon vanilla extract
  • ½ teaspoon salt
  • 1½ cups quick cooking oats, not pulsed
  • 10 tablespoons miniature M&M’s, divided (8 tablespoons and 2 tablespoons)
  • 1 cup semi-sweet chocolate chips
  • 3 tablespoons heavy cream

Instructions

  1. Step 1: Prepare an 8-inch baking dish by lining it with foil or parchment paper. Set aside.
  2. Step 2: In a large mixing bowl, cream together the softened butter, sugar, and brown sugar until smooth. Add the peanut butter and mix well until fully combined.
  3. Step 3: Stir in the 6 tablespoons of pulsed quick oats, vanilla extract, and salt. Gradually fold in the 1½ cups of whole quick oats, then gently fold in 8 tablespoons of the miniature M&M’s.
  4. Step 4: Press the cookie mixture evenly into the prepared baking dish.
  5. Step 5: In a small microwave-safe bowl, combine the chocolate chips and heavy cream. Heat in 30-second intervals, stirring between each, until the chocolate is melted and smooth. Spread the melted chocolate evenly over the cookie mixture.
  6. Step 6: Sprinkle the remaining 2 tablespoons of miniature M&M’s over the chocolate layer. Cover and refrigerate for at least 2 hours or until firm.
  7. Step 7: Once set, remove from the refrigerator and cut into squares. Serve and enjoy!

Tips & Variations

  • For a nut-free option, substitute sunflower seed butter for the peanut butter.
  • You can use rolled oats instead of quick cooking oats, but pulsing them slightly will help with texture.
  • Try adding chopped nuts or shredded coconut to the mix for extra crunch and flavor.
  • If you prefer a richer chocolate topping, use dark chocolate chips instead of semi-sweet.

Storage

Store the monster cookies in an airtight container in the refrigerator for up to one week. You can also freeze them for up to 2 months; thaw in the refrigerator before serving. These bars are best served chilled or at room temperature.

How to Serve

A stack of three layered bars rests on a white plate with a white marbled background, each bar showing two main layers; the bottom layer is a light golden oatmeal mixture with small bits of colorful candy pieces and chocolate chips visible inside, while the top layer is a smooth, thick, dark chocolate coating decorated with scattered colorful candy-coated chocolates in red, blue, green, and orange. The edges of the chocolate layer are slightly uneven and the bars have a rough, textured look from the oat mixture underneath. Photo taken with an iphone --ar 4:5 --v 7

Serve this delicious recipe with your favorite sides.

FAQs

Can I use crunchy peanut butter instead of creamy?

Yes, crunchy peanut butter can be used and will add a bit of extra texture to the cookies.

Do I have to refrigerate these cookies?

Refrigeration helps the cookies set properly and keeps the topping firm, but if you prefer a softer texture, you can let them set at room temperature. Keep in mind they may be less firm without refrigeration.

Print
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No-Bake Monster Cookies Recipe


  • Author: Marina
  • Total Time: 2 hours 15 minutes
  • Yield: 12 bars 1x

Description

Delicious and easy No-Bake Monster Cookies packed with peanut butter, oats, chocolate chips, and colorful M&M’s. These bars are quick to prepare, combining creamy textures with crunchy candies, making them a perfect treat that requires no baking and sets in the refrigerator.


Ingredients

Scale

Cookie Base

  • 6 tablespoons butter, softened
  • 6 tablespoons sugar
  • ¼ cup brown sugar
  • ¾ cup creamy peanut butter
  • 6 tablespoons quick cooking oats, pulsed in food processor
  • 1 teaspoon vanilla extract
  • ½ teaspoon salt
  • 1½ cups quick cooking oats, not pulsed
  • 8 tablespoons miniature M&M’s

Topping

  • 1 cup semi-sweet chocolate chips
  • 3 tablespoons heavy cream
  • 2 tablespoons miniature M&M’s

Instructions

  1. Prepare the pan: Line an 8-inch baking dish with foil or parchment paper, allowing some overhang for easy removal later. Set aside.
  2. Cream butter and sugars: In a large mixing bowl, combine the softened butter, sugar, and brown sugar. Mix until smooth and creamy to incorporate air for a fluffy texture.
  3. Add peanut butter and dry ingredients: Stir in the creamy peanut butter until well blended. Add the 6 tablespoons of pulsed quick oats, vanilla extract, and salt. Slowly fold in the remaining 1½ cups of quick oats and 8 tablespoons of miniature M&M’s until evenly mixed.
  4. Press mixture into pan: Transfer the dough mixture into your prepared pan and firmly press it down in an even layer to create the cookie base.
  5. Prepare chocolate topping: In a microwave-safe bowl, combine semi-sweet chocolate chips and heavy cream. Microwave in 30-second intervals, stirring each time until the chocolate melts completely and forms a smooth ganache.
  6. Top and garnish: Spread the melted chocolate ganache evenly over the cookie base. Sprinkle the remaining 2 tablespoons of miniature M&M’s on top for a decorative and crunchy finish.
  7. Chill to set: Cover the pan and refrigerate for at least 2 hours, or until the bars are firm and set. Once set, lift the block from the pan using the foil or parchment paper overhang and cut into squares.

Notes

  • You can substitute creamy peanut butter with natural or chunky peanut butter for added texture.
  • Make sure to pulse the initial oats finely to give a smoother cookie base.
  • For a dairy-free version, use vegan butter and coconut cream instead of butter and heavy cream.
  • Press the mixture firmly to ensure bars hold together well after chilling.
  • Store refrigerated in an airtight container for up to 1 week.
  • Microwave times may vary, so watch the chocolate closely to prevent burning.
  • Prep Time: 15 minutes
  • Cook Time: 0 minutes
  • Category: Desserts
  • Method: No-Cook
  • Cuisine: American

Keywords: No-Bake Monster Cookies, Peanut Butter Cookies, Oatmeal Cookies, No-Bake Dessert, Easy Cookies, M&M Bars

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