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Chewy & Dreamy: Easy Peanut Butter Butterscotch Bars

These Peanut Butter Butterscotch Bars are a delightful, easy-to-make dessert, bursting with classic sweet and nutty flavors. They're wonderfully chewy and perfect for satisfying that comfort-food craving, reminding you of childhood bake sales or cozy afternoons.
Prep Time 15 minutes
Cook Time 25 minutes
Total Time 40 minutes
Course Bars, Dessert
Cuisine American
Servings 24 bars

Equipment

  • 9x13-inch baking dish
  • Large mixing bowl
  • Whisk
  • Spatula
  • Parchment paper

Ingredients
  

  • 0.5 cup unsalted butter melted
  • 1 cup creamy peanut butter processed peanut butter recommended for baking
  • 1 cup packed brown sugar
  • 0.25 cup granulated sugar
  • 2 large eggs
  • 1 tsp vanilla extract
  • 1.5 cups all-purpose flour
  • 1 tsp baking powder
  • 0.25 tsp salt
  • 1 cup butterscotch chips
  • 0.5 cup chocolate chips optional

Instructions
 

  • Step 1: Preheat your oven to a cozy 350°F (175°C). Then, grab a 9x13-inch baking dish. You can either grease it really well, or for super easy removal (my personal preference!), line it with parchment paper, leaving a little overhang on the sides. This creates "handles" for lifting the cooled bars out later.
  • Step 2: In a large mixing bowl, pour in your melted butter. Add the creamy peanut butter, brown sugar, and granulated sugar. Now, grab a whisk and get to it! Whisk everything together until it’s beautifully smooth and well combined. You want to make sure there are no lumps of sugar hanging out.
  • Step 3: Next, crack in your two large eggs and drizzle in the vanilla extract. Give it another good whisk until everything is thoroughly combined. The mixture should look glossy and smooth.
  • Step 4: Now, for the flour, baking powder, and salt. Sprinkle these over your wet mixture. With a spatula or a wooden spoon, gently stir until everything is just combined. The key here is not to overmix! Overmixing can lead to tough bars, and we want them perfectly tender and chewy. As soon as you see no more streaks of flour, stop.
  • Step 5: Time for the good stuff! Fold in your butterscotch chips and those optional chocolate chips until they're evenly distributed throughout the batter. Aren't they looking good already?
  • Step 6: Pour your glorious batter into the prepared pan. Use your spatula to spread it out evenly, reaching all the corners. It might be a little thick, and that’s totally fine.
  • Step 7: Pop the pan into your preheated oven. Bake for 25 to 30 minutes. You’ll know they’re done when the edges are a beautiful light golden brown and a toothpick inserted into the center comes out with only a few moist crumbs clinging to it. Remember, ovens can vary, so keep an eye on them! Don't overbake, as these bars are meant to be soft and chewy.
  • Step 8: This is the hardest part, I know! Let the bars cool completely in the pan before you even think about slicing them. Cooling allows them to set up properly, giving you those clean, perfect squares. Plus, the flavors deepen as they cool.

Notes

Customize your bars: While creamy peanut butter is recommended, you can experiment with crunchy peanut butter or other nut butters, though the texture might vary. For extra decadence, try adding white chocolate chips, dark chocolate chunks, or mini peanut butter cups. For a crunch factor, fold in about 1/2 cup of chopped peanuts, pretzels, or even crushed potato chips for a sweet and salty twist! Once cooled, drizzle with melted chocolate, a little extra melted peanut butter, or a sprinkle of flaky sea salt before serving. For best results, don't overmix the flour, as this can lead to tough, cakey bars. Lining your pan with parchment paper makes for incredibly easy removal and clean slicing. It is crucial to let the bars cool completely before slicing to prevent crumbling and ensure clean, perfect squares. Store cooled bars in an airtight container at room temperature for up to 3-4 days (place parchment paper between layers if stacking). To extend freshness, store in the refrigerator for up to a week. These bars freeze beautifully; cut into squares, wrap individually in plastic wrap, and store in a freezer-safe bag or container for up to 3 months. Thaw at room temperature or microwave for a few seconds for a warm, gooey treat.
Keyword Butterscotch, Chewy, Easy, Peanut Butter