For a richer flavor, use dark chocolate chips instead of semi-sweet. Feel free to substitute other candies or nuts for the M&M's. Store the cooled cookie bars in an airtight container at room temperature for up to 3 days. For a softer bar, slightly underbake.
Peanut Butter and Chocolate Monster Cookie Bars
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PREP TIME10 mins
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COOK TIME15 mins
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TOTAL TIME25 mins
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SERVING30 People
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VIEWS12
These decadent bars are a symphony of textures and flavors, blending the creamy richness of peanut butter with the bittersweet allure of chocolate, all nestled within a chewy, oat-filled cookie base. A guaranteed crowd-pleaser!
Ingridients
Adjust Servings
Nutrition
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Carbohydrate35 g
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Cholesterol28 mg
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Fiber3 g
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Protein6 g
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Saturated Fat6 g
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Sodium181 mg
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Sugar24 g
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Fat16 g
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Unsaturated Fat0 g
Follow The Directions
01
Step
5 mins
Preheat the oven to 350°F (175°C). Lightly grease a 10x15 inch baking pan. (5 minutes)
02
Step
5 mins
In a large bowl, cream together the granulated sugar, brown sugar, and softened butter using an electric mixer until light and fluffy. (5 minutes)
03
Step
3 mins
Beat in the peanut butter until fully incorporated, then add the eggs one at a time, mixing well after each addition. Scrape down the sides of the bowl to ensure even mixing. (3 minutes)
04
Step
3 mins
Gradually mix in the rolled oats, baking soda, and vanilla extract until just combined. Be careful not to overmix. (3 minutes)
05
Step
2 mins
Stir in the semi-sweet chocolate chips and candy-coated chocolate pieces until evenly distributed throughout the batter. (2 minutes)
06
Step
2 mins
Spread the cookie dough evenly into the prepared baking pan. (2 minutes)
07
Step
18 mins
Bake in the preheated oven for 15-18 minutes, or until the edges are lightly golden brown and the center is set. Avoid overbaking for the best chewy texture. (18 minutes)
08
Step
1 hrs
Let the cookie bars cool completely in the pan before cutting into squares or rectangles. (60 minutes)
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RECIPE REVIEWS
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Please Rate
Sheldon Gibson
Jun 28, 2025I accidentally overbaked them a little, but they were still delicious! I'll be sure to watch them more closely next time.
Lenore Kiehn
Jun 26, 2025Can I substitute almond butter for peanut butter?
Cathryn Stiedemannprosacco
Jun 26, 2025This is my first time making cookie bars, and I was nervous, but the instructions were so clear and easy to follow. Thank you!
Kaleigh Renner
Jun 26, 2025I added a pinch of sea salt on top before baking and it really enhanced the flavors.
Neva Hagenes
Jun 19, 2025These were a huge hit at our family gathering! Everyone loved them!
Brianne Beatty
Jun 13, 2025I followed the recipe exactly and they turned out perfectly. So easy and delicious!
Stewart Dubuque
Jun 12, 2025I love this recipe!
Halle Schowalter
Jun 9, 2025Very good, i suggest add some salt.
Estella Homenick
Jun 7, 2025My kids love helping me make these. They're so simple and fun to bake together.
Aryanna Robelkuhlman
Jun 1, 2025These are my go-to dessert for potlucks. They're always a crowd-pleaser!