¾ cup milk of choice
1 cinnamon stick, optional
½ cup (8 tablespoons) unsalted butter or dairy-free alternative, room temperature
⅔ cup sugar
2 extra-large eggs*
1½ teaspoons pure vanilla extract
1½ cups gluten-free all-purpose flour blend of choice
¾ teaspoon xanthan gum (omit if already in your flour blend)
2 teaspoons baking powder
¼ teaspoon kosher salt
¼ teaspoon cream of tartar
¼ teaspoon ground cinnamon
Topping
½ cup sugar
1 teaspoon ground cinnamon