Prep Time 20 minutes mins
Cook Time 12 minutes mins
Resting Time 15 minutes mins
Total Time 47 minutes mins
Chill the cookie dough for 15 to 20 minutes if it feels too sticky to scoop cleanly, and lightly grease the liners if yours tend to cling. For clean layers, avoid overfilling the cups; each layer should be about level with the liner’s rim. If using dark, nonstick pans, start checking at 9 minutes to prevent overbaking. You can swap semisweet chips for milk or dark chocolate, or add 1/2 cup chopped nuts to the brownie batter for crunch. These freeze well: cool completely, freeze on a tray, then store in a freezer bag up to 2 months and rewarm at 300°F for 6 to 8 minutes.