For the cookies:
– 1 cup butter — unsalted, cold, cut into pieces
– 1 cup sugar
– 2 large eggs — room temperature
– 3 1/2 cups flour
– 2 tsp vanilla extract
– 1 tsp cornstarch
– 1/2 tsp salt
Other:
– sprinkles
– 1 cup chocolate chips — semi-sweet
– 1 tsp vegetable oil