A muffin pan is a kitchen tool used for baking muffins and cupcakes. It typically has multiple cup-shaped indentations, allowing you to bake several muffins at once. Muffin pans come in various sizes, with the most common having 12 cups. They are usually made from materials like metal, silicone, or glass, which help distribute heat evenly during baking. Muffin pans can also be used for other recipes, such as mini quiches or individual servings of cornbread. They are versatile and can be found in most kitchens. Proper care, like greasing or lining the cups, ensures easy removal of baked goods.