Prep Time 15 minutes mins
Cook Time 25 minutes mins
Total Time 40 minutes mins
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.