Ingredients

½cupbutter,softened to room temperature

½cupbrown sugar,packed

⅓cupgranulated sugar

1egg

2tspvanilla extract,store-bought or homemade

1½cupall-purpose flour

2tspcornstarch

1tspBaking Soda

½tspsalt

¼cupbutter,softened to room temperature

¼cupbrown sugar,packed

3tbspgranulated sugar

1egg yolk,or half of a whisked

1tspvanilla extract,store-bought or homemade

¾cupall-purpose flour

1tspcornstarch

½tspbaking soda

¼tspsalt

Preparation

Preheat oven to 350 degrees F.

In the bowl of a stand mixer, use the paddle attachment to cream together the softened butter and sugars on medium-high speed until light and fluffy, about 3 minutes.

Add egg and vanilla, and mix until combined, about 1 minute.

Add in the flour, cornstarch, baking soda and salt, and beat on medium-low speed until combined.

Shape the dough into balls that are about 1-inch in diameter, and place them on a parchment-covered baking sheet.

Chill in the refrigerator for at least 10 to 20 minutes, or until the dough is chilled through. This will help prevent the cookies from spreading out too flat when they bake.

Bake for 10 to 12 minutes until the edges are just set. The centers may look slightly undercooked.

Cool cookies on the baking sheet for about 5 minutes, then transfer to a wire rack to finish cooling.

Serve immediately