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4.8 from 234 votes

Butterscotch PB Monster Cookie Bars

Enjoy something delicious and satisfying with this easy-to-make recipe.

Prep Time
20 mins
Cook Time
20 mins
Total Time
45 mins
Servings: 24 Servings (9X13-inch pan of bars)
Course: Dessert
Cuisine: American

Ingredients

  • ½ cup salted butter softened to room temperature
  • 1 cup creamy peanut butter
  • ⅔ cup light brown sugar
  • ⅔ cup granulated sugar
  • 1 teaspoon baking soda
  • ¼ teaspoon salt
  • 2 large eggs
  • 1 teaspoon vanilla extract
  • 1 ¼ cups quick oats (see note)
  • 1 ¼ cups old-fashioned oats (see note)
  • 1 cup chocolate chips
  • 1 cup butterscotch chips or peanut butter chips or more chocolate chips (see note)

Instructions

    Cup of Yum
  1. Preheat the oven to 350 degrees F. Lightly grease a 9X13-inch pan or line with foil and lightly grease the foil (for easier cleanup). I use a metal pan; if using glass, you may want to decrease the oven temp to 325 degrees.
  2. In the bowl of a stand mixer fitted with the paddle attachment or in a large bowl using a handheld electric mixer, beat the butter, peanut butter, brown sugar, granulated sugar, baking soda and salt together until light and fluffy, 1-2 minutes, scraping down the sides of the bowl as needed.
  3. Add the eggs and vanilla and beat until well-combined. Add the quick oats, old-fashioned oats, chocolate chips and butterscotch chips and mix until evenly combined.
  4. Spread the dough evenly in the bottom of the prepared pan. Bake for 20-25 minutes until the edges are lightly golden - don't overbake or the bars might be dry and crumbly. Cool the bars in the pan before cutting into squares. These bars freeze great!

Notes

  • Oats: I like the combo of the two different kinds of oats, but you can use either all quick oats or all old-fashioned oats (slightly different texture in the bars if doing so).
  • Peanut Butter: I have not tried these bars with natural peanut butter or a different kind of nut butter like cashew or almond.
  • Gluten-Free: these bars are easily gluten-free since there isn't flour in the recipe, but to be truly gluten-free, double check all your ingredients (particularly the oats and the butterscotch or other chips) to ensure the package clearly states they are gluten-free. The Nestle brand of butterscotch chips are NOT gluten-free but the Guittard and Hershey brands are gluten-free.

Nutrition Information

Serving 1 Bar Calories 231kcal (12%) Carbohydrates 29g (10%) Protein 4g (8%) Fat 12g (18%) Saturated Fat 5g (25%) Cholesterol 26mg (9%) Sodium 190mg (8%) Fiber 1g (4%) Sugar 21g (42%)

Nutrition Facts

Serving: 24Servings (9X13-inch pan of bars)

Amount Per Serving

Calories

% Daily Value*

Serving 1 Bar
Calories 231kcal 12%
Carbohydrates 29g 10%
Protein 4g 8%
Fat 12g 18%
Saturated Fat 5g 25%
Cholesterol 26mg 9%
Sodium 190mg 8%
Fiber 1g 4%
Sugar 21g 42%

* Percent Daily Values are based on a 2,000 calorie diet.