Add flour mixture into creamed mixture and blend together thoroughly. Stir in oats.
Chill batter for 20 minutes (optional). Preheat oven to 375 degrees and prepare your baking sheet. Grease baking sheet, or use non-stick foil, parchment paper, or a Silpat liner.
With a teaspoon or a small ice cream scooper, place a rounded teaspoon full of cookie dough on prepared baking sheet, allowing room to spread.