- Heat oven to 325°F.
- Line baking pans with parchment paper.
- In a large bowl, sift flour, baking soda, cream of tartar, salt and cinnamon.
- Set aside.
- In the bowl of an electric mixer, cream butter and sugars until fluffy.
- Slowly add egg, egg yolk, and vanilla; mix to incorporate and scrape down.
- Add flour mixture and mix until just fully incorporated.
- Refrigerate dough.
- Scoop out dough and shape into balls with your hands.
- Roll balls into spiced sugar.
- Arrange on baking pans; bake for 10-12 minutes.
Makes 40 cookies.
Approximate Nutrient Analysis per serving per cookie:
120 calories, 5 g fat, 3 g saturated fat, 20 mg cholesterol, 100 mg sodium, 18 g carbohydrate, 0 g fiber, 12 g sugar, 1 g protein