Preheat oven to 350°F
Line a baking sheet with parchment
Cream butter and peanut butter together until smooth. Add both sugars and beat for 2 minutes.
Add egg, vanilla, baking soda and salt.
Add flour.
Fold in chips.
Scoop tablespoon amounts. Roll into a ball and then flatten to approximately 1/2 inch thick. Place on baking sheet about 2 inches apart.
Bake for 10 minutes until golden edges.
Remove from oven and cool completely.
Adapted from [Cookie and Cups/http://cookiesandcups.com/]