Soft, chewy peanut butter cup cookies packed with melty Reese's in every bite are the kind of nostalgic treat that disappears from the cookie jar before they even have a chance to cool. They come together with simple ingredients and are perfect for gifting, holiday trays, parties, or turning that leftover Halloween candy into something everyone will rave about.
Preheat oven to 375 °F. Line two baking sheets with parchment.
In a large bowl, mix the flour, baking soda, and salt.
Beat the butter, brown sugar, and sugar together until creamy.
Add the egg and vanilla, and beat to combine.
Gradually add the flour mixture until the dough is incorporated. Fold in the chopped peanut butter cups.
Drop tablespoon-size balls of dough 2 inches apart onto the prepared cookie sheets.
Bake until light brown, 12 to 15 minutes.
Notes
Chill the dough if it feels too soft. Even 20 minutes helps prevent excessive spreading and improves texture.Don’t overbake. Pull the cookies when the edges are lightly golden and the centers look slightly underdone; they’ll set as they cool.Serve: Enjoy them with milk! It's a classic combo for a reason. They go well on dessert trays, too.Store: Keep in an airtight container at room temperature for up to 5 days, adding a slice of sandwich bread to keep them soft, or refrigerate for up to 1 week. You can also freeze baked cookies for 1 month or freeze raw dough balls and bake them straight from frozen with 1 to 2 extra minutes.