No Bake Peanut Butter Cup Squares

These are the dessert equivalent of opening a king-size Reese’s Peanut Butter Cup, except homemade and cut into squares. A creamy peanut butter and graham cracker base gets crowned with a thick layer of melted chocolate, chilled until set, and cut into pieces. No baking, no fussy techniques, and they taste shockingly close to the real thing.

The graham cracker crumb addition is what separates these from straight peanut butter bars. The crumbs add subtle structure and a faint vanilla-graham note that mimics the slight crispness of a real peanut butter cup. Without the crumbs, the base is too soft and pourable to hold up as a bar.

The optional tablespoon of shortening added to the chocolate is doing important work. Shortening lowers the melting point of the chocolate and makes it more forgiving once cooled. The result is a chocolate top that cuts cleanly through with a knife instead of shattering into shards. Skip the shortening and you’ll struggle to slice these without breaking the top.

Chilling for 3 to 4 hours minimum is critical. The base needs time to firm up to bar consistency and the chocolate needs to harden completely. Cutting too soon produces a soft, messy result instead of the clean squares you want.

Pro Tips

• Use creamy peanut butter, not natural. Natural peanut butter separates and produces a greasy base.
• Line the pan with parchment with overhang on two sides for easy lift-out and clean cutting.
• Score the chocolate top with a knife when slightly set (10 to 15 minutes in fridge) to make later cutting cleaner.
• Bring to room temperature for 10 minutes before cutting. Frozen-cold chocolate cracks; room temp slices cleanly.

Variations

• Use crunchy peanut butter for added texture.
• Substitute almond butter or cashew butter for a different nutty profile.
• Add 1 cup of crushed pretzels to the base for a sweet-salty version.
• Top with chopped peanuts or flaky sea salt over the chocolate before it sets.