Reese's Pieces Cookies have the perfect peanut butter flavor in an easy-to-make dough. Your whole family will love these classic cookies with the sweet crunch of Reese's Pieces in every bite!
In a stand mixer or medium mixing bowl, cream peanut butter, butter, and sugar until fluffy (about 3 minutes).
Beat in egg and vanilla until just combined.
In a medium mixing bowl, whisk together flour, baking powder, and salt.
Gradually add dry mixture to wet mixture until just combined. Fold in Reese's Pieces.
Cover dough (or dough balls) and refrigerate 30 minutes. Meanwhile, preheat oven to 375°F.
Using a medium cookie scoop or teaspoon, form dough balls. Drop onto parchment lined cookie sheets allowing room for spread.
Bake 6 minutes. Optional: remove and gently press Reese's Pieces on top. Return to oven for 2-3 minutes until edges are set and slightly golden.
Allow to cool 1 minute. Transfer to a wire cooling rack.
Notes
Mix your dough a day ahead. Refrigerating the dough for at least 30 minutes helps to prevent spread during baking. Making the dough a day ahead and refrigerating overnight saves time on baking day, which is especially helpful if you're making these for an event like a party or cookie exchange.
Serve Reese's Pieces Cookies warm out of the oven for the best melt-in-your-mouth texture and flavor. If you're serving from refrigerated or room temperature, you can microwave cookies a few at a time for just a few seconds to warm the cookie and melt the candies just a touch.
To Store:
Room Temperature - Store in a sealed, airtight container for up to five days. After that, cookies will start to lose their fresh flavor.
Refrigerate - Baked cookies will stay fresh in the refrigerator for up to one week. Store in an airtight container such as a lidded Rubbermaid bowl or a Ziploc bag. Let cookies come to room temperature before eating, so Reese's Pieces will be soft for chewing.
Freeze Cookies - After baking, let cookies cool completely before freezing. Then place cookies in an airtight container or freezer bag, separating layers with parchment paper. When ready to serve, allow cookies to thaw in the refrigerator or at room temperature.
Freeze Dough Balls - Freeze dough balls on a baking sheet for 1 hour to harden. Then transfer to an airtight container or freezer bag and store for up to 3 months. After that, dough will remain edible but will begin to lose its freshness. When you're ready to bake, simply let thaw to room temperature, then bake according to instructions. You can even bake from frozen by adding a few minutes to the baking time - watch cookies closely and remove from oven once center appears set.