Gluten Free Chocolate Chip Cookies

¾ cup soft butter
¾ cup granulated sugar
1 cup packed brown sugar
1 egg + 1 egg yolk
2 teaspoons vanilla
2 ⅔ cups 1-for-1 gluten free flour (I use Gold Medal Oat Flour)
1 teaspoon baking soda
1 teaspoon salt
1 Tablespoon corn starch
1 ½  cups semi-sweet chocolate chips

Preheat oven to 385 degrees. Cream butter and sugars with an electric mixer on medium high for 1 minute or until fluffy. Hand stir in egg+ egg yolk and vanilla; don’t over-mix. Add dry ingredients all at once and mix until fully incorporated. Add 1- 2 Tablespoons more flour for high elevation. Stir in chocolate chips. Scoop out approximately 18- 2” balls of dough.  Gently roll. For a richer flavor and smoother texture, form cookie dough balls, flatten slightly and refrigerate or freeze until ready to bake.  Place on greased or parchment paper on an aluminum cookie sheet. Bake at 385 degrees for 12+ min. Let set. Share!