Gingerbread Waffles

Name: Gingerbread Waffles
Ingredients: 1 1/3 cups milk , warmed to room temperature; 3 tablespoons melted butter; 1/2 cup molasses; 1/2 cup dark brown sugar; 1 large egg; 1 3/4 cups ( 290 g ) all-purpose flour; 1 tablespoon ground ginger; 2 teaspoons baking powder; 1 teaspoon ground cinnamon; 1/2 teaspoon salt; 1/4 teaspoon freshly grated nutmeg; 1/8 teaspoon ground cloves; Melted butter or cooking spray for coating the waffle iron; Powdered sugar for serving, optional