Give a fun twist to this classic cookie by making chocolate chip marshmallow cookies. This is a chewy sweet cookie studded with chocolate chips and filled with a gooey marshmallow.
Mix Dry. In a bowl, whisk together the flour, cornstarch, baking powder, baking soda, and salt. Set aside.
Cream. In a large bowl, beat the butter, brown sugar, and granulated sugar until light and fluffy.
Add Wet. Mix in the eggs and vanilla extract until fully combined.
Combine. Add the dry ingredients and mix until a thick dough forms.
Fold. Fold in the milk chocolate chips.
Shape. Scoop the dough into 2 tablespoon portions and place on a parchment lined baking sheet, spacing 2 to 3 inches apart. Top each portion with half of a marshmallow. Cover with an additional 1 tablespoon of dough and press gently to seal the marshmallow inside.
Bake. Bake at 350°F for 10 to 12 minutes, until the edges are set and the tops no longer look glossy. The centers may appear slightly underbaked.
Cool. Let rest on the baking sheet for 2 minutes, then transfer to a wire rack to cool completely.
Notes
Cooling. Allow cookies to set on the baking sheet before moving to prevent breaking.
Make Ahead. Dough can be scooped and chilled while baking additional trays.
Texture. Cookies will continue to set as they cool, keeping the centers soft.