Small Batch Chocolate Chip Cookie

1: Preheat oven to 350°F.

2: In a bowl, cream together the butter, brown sugar, and granulated sugar.

3: Add the corn starch, baking powder, salt, and egg yolk. Mix well.

4: Stir in vanilla and flour until combined.

5: Fold in chocolate chips to your desired measurement.

6: Scoop dough onto a baking sheet.

7: Bake for 8 minutes.