Chocolate Chip Cookies

Ingredients

• •3/4 cup butter
• •2/3 cup brown sugar
• •1/3 cup granulated sugar
• •1 egg + 1 egg yolk
• •1 tbsp vanilla extract
• •1 1/4 cup All-purpose flour
• •1 tbsp cornstarch
• •3/4 tsp baking soda
• •1/2 tsp salt
• •1 cup semi sweet chocolate chips/chopped chocolate