Chewy Peanut Butter Chip Bars

Chewy peanut butter chip bars are essentially a dense, fudgy brownie studded with peanut butter chips. The cocoa builds the chocolate base while the chips melt into soft sweet pockets that hit you halfway through every bite. One sheet pan, 20 minutes, 48 bars: this is the recipe for school bake sales, potlucks, and any time you need to feed a crowd without committing to layered cakes.

Use natural unsweetened cocoa powder rather than Dutch-processed for this one. The recipe relies on baking soda for lift, and that needs the natural acidity in regular cocoa to react. Dutch cocoa is alkalized and won’t get the same rise.

Beat the butter and sugar until genuinely light and fluffy: three to four minutes with a stand mixer. That long creaming is what gives the bars their chewy texture instead of cakey crumb. Skipping the time gives you something flatter and denser.

Don’t overbake. Pull at 20 minutes when the top looks set and a tester comes out with a few moist crumbs. The bars firm up dramatically as they cool, and a fully set tester at 20 minutes means dry bars by morning.

Pro Tips

• Line the pan with parchment with overhang on two sides. Lift the whole slab out in one piece for cleaner cutting than wrestling bars out of the pan.
• Cool completely before cutting. Warm bars tear and squish; cold bars cut into clean rectangles with a sharp knife wiped between cuts.
• Store in a sealed container with a slice of bread tucked in. The bread keeps the bars soft and chewy for days.

Variations

• Swap half the peanut butter chips for white chocolate or chocolate chips for a triple-chip version.
• Add a cup of chopped peanuts for crunch and extra peanut flavor.
• Drizzle the cooled bars with melted peanut butter or a chocolate ganache for a finished look.