Snickerdoodle Bars

Ingredients

• 0.5 cup unsalted butter, softened
• 0.5 cup white sugar
• 0.25 cup firmly packed brown sugar
• 1 large egg, at room temperature
• 2 teaspoons vanilla extract
• 1.25 cups all-purpose flour
• 0.5 teaspoon cream of tartar
• 0.5 teaspoon baking soda
• 0.5 teaspoon salt
• 0.25 teaspoon ground cinnamon, divided
• 0.13 teaspoon ground nutmeg
• 1 tablespoon white sugar
• 0.5 teaspoon ground cinnamon

Steps

1. Preheat the oven to 350 degrees F (175 degrees C). Line an 8×8-inch square pan with enough parchment paper to have overhang on all sides.
2. Cream together butter, 1/2 cup white sugar, and brown sugar in a bowl with an electric mixer until light and fluffy. Mix in egg and vanilla until thoroughly combined. Add in flour, cream of tartar, baking soda, salt, 1/4 teaspoon cinnamon, and nutmeg, and mix until a dough just begins to form.
3. Place dough into prepared pan. Using lightly floured hands, press dough firmly and evenly into the bottom of the pan.
4. In a small bowl, mix together 1 tablespoon white sugar and 1/2 teaspoon cinnamon. Sprinkle evenly over the dough.
5. Place pan into the preheated oven, and bake just until the dough in the center of the pan feels barely set, 20 to 23 minutes. Do not over bake.
6. Allow cookies to cool in pan for 10 minutes before removing to a wire rack to cool completely. Cut into 16 bars.