A spectacular, shareable cookie slab featuring a fudgy chocolate brownie base swirled with peanut butter and topped with a crunchy pretzel and M&M's mix. This giant cookie is perfect for parties and allows everyone to pick their favorite flavor slice.
Prep Time 20 minutes mins
Cook Time 25 minutes mins
Total Time 45 minutes mins
Storage: Keep covered at room temperature for up to 5 days. For longer storage, wrap tightly and freeze for up to 3 months. Make-Ahead Tip: The dough can be prepared and pressed into the pan up to 24 hours in advance; cover and refrigerate, then bake straight from the fridge, adding 2-3 minutes to the bake time. Variations: Swap peanut butter chips for white chocolate chips or butterscotch chips. For a different topping, try chopped nuts, toffee bits, or mini marshmallows. Serve warm with a scoop of vanilla ice cream for an indulgent dessert.