- 1/2 cup unsalted butter , softened
- 1/2 cup packed brown sugar
- 1/4 cup granulated sugar
- 1 large egg
- 1 teaspoon pure vanilla extract
- 1 1/2 cup all-purpose flour
- 1 teaspoon cornstarch
- 1/4 teaspoon baking soda
- 1/4 teaspoon salt
- 1 cup mini Reese's Pieces , divided
Preheat oven to 350°F and line baking sheets with parchment paper.
In a large bowl, cream together butter, brown sugar, and granulated sugar until light and fluffy. Mix in egg and vanilla.
In another bowl, mix together flour, cornstarch, baking soda, and salt. Mix dry ingredients into wet ingredients until combined. Stir in about 2/3 of the mini Reese's Pieces.
Scoop dough by the teaspoon and roll each into a small ball before placing on parchment. Slightly flatten each ball and place extra Reese's Pieces on top.
Bake for 5-7 minutes, and let rest on baking sheet for 1-2 minutes before removing to a rack to cool completely.
Sources: Cooking Classy, Simply Scratch, and Yammie's Noshery