Mini Apple Cider Cakes

Name: Mini Apple Cider Cakes
Prep time: 20 min
Cook time: 15 min
Total time: 35 min
Cuisine: American
Ingredients: 1 1/2 cups apple cider; 4 tablespoon salted butter, melted; 2 teaspoons vanilla extract; 2 large eggs, at room temperature; 1/3 cup apple butter; 1/2 cup packed dark brown sugar; 2 cups all-purpose flour; 1 1/2 teaspoon baking powder; 1 teaspoon ground cinnamon; 1/2 teaspoon ground nutmeg; 1/4 teaspoon ground ginger; 1/2 teaspoon kosher salt; 6 tablespoons salted butter; 1/2 cup granulated sugar; 2 teaspoons ground cinnamon; 1/4 teaspoon cardamon; 6 ounces melted chocolate ((optional)); cinnamon sticks, for decorating ((optional))