Spiced Sweet Potato Waffles

Name: Spiced Sweet Potato Waffles
Cuisine: American
Ingredients: 1 cup all-purpose flour; 1 cup cooked and mashed sweet potato (about 1 medium sweet potato); 1 cup milk (dairy or non-dairy); 2 large eggs; 2 tablespoons melted butter or coconut oil; 2 tablespoons brown sugar or maple syrup; 1 teaspoon baking powder; 1/2 teaspoon baking soda; 1/2 teaspoon ground cinnamon; 1/4 teaspoon ground nutmeg; 1/4 teaspoon ground ginger; Pinch of salt; Cooking spray or oil for greasing the waffle iron; Optional Toppings; Chopped nuts (pecans, walnuts); Maple syrup; Sliced bananas or berries