A spice blend is a mixture of various spices and herbs that are combined to enhance the flavor of food. These blends can vary widely in ingredients and proportions, allowing for a diverse range of tastes. Common examples include curry powder, garam masala, and Italian seasoning. Spice blends are often used in cooking to simplify the seasoning process, providing a balanced flavor profile without the need to measure individual spices. They can be used in a variety of dishes, from meats and vegetables to soups and sauces, making them a versatile addition to any kitchen.