Eggnog Snickerdoodle Thumbprint Cookies with Ganache - Recipes by Clare

Ingredients

• 4 ounces (1 stick) unsalted butter, room temperature.
• 1/2 cup light brown sugar, packed.
• 1/4 cup white granulated sugar.
• 1 medium egg (50g), room temperature.
• 1 teaspoon vanilla extract.
• 245 grams (1 3/4 cups) all purpose flour.
• 1/4 teaspoon kosher salt.
• 1/4 teaspoon baking soda.
• 1/2 teaspoon cream of tartar.
• 1/3 cup sugar mixed with 2 tablespoons cinnamon (for rolling).
• 4 ounces white chocolate, chopped.
• 2 tablespoons eggnog.
• 1 tablespoon dark rum or 1/4 teaspoon rum extract (optional).
• 1/4 teaspoon freshly grated nutmeg.