Ingredients:

• 2 1/4 cups (270 g) of all-purpose flour

• 1 1/2 tsp cornstarch

• 1 tsp baking soda

• 1/2 tsp salt

• 2 tbsp Bustelo ground coffee (optional)

• 3/4 cup (170 g) of room temperature unsalted butter

• 3/4 cup (170 g) of light brown sugar

• 1/2 cup (50 g) of granulated sugar

• 1 large egg and 1 egg yolk at room temperature

• 3 tsp of vanilla extract

• White choclate chips to taste

Directions:

• Whisk flour, cornstarch, baking soda, salt, and coffee powder (if using)  in a mixing bowl

• In a stand-mixer, whisk butter, brown sugar, and granulated sugar together until smooth

• Whisk in egg and egg yolk

• Whisk in vanilla until combined

• Add dry ingredients to wet ingredients. Add chocolate chips and mix slowly until barely combined

• Cover and chill for ~2 hours

• Preheat oven to 315F (170C)

• Roll balls of dough (about 1 1/2 inches in diameter). Place 2 1/2 inches apart on cookie sheet

• Bake for 11-12 minutes and then allow to rest