What is a typical ingredient in barbecue rubs?

The typical ingredient found in barbecue rubs is sugar. Sugar plays a crucial role in the overall flavor profile of the rub, adding sweetness that balances the savory and spicy elements. It also contributes to the browning process during cooking, helping to create a desirable crust known as the "bark" on smoked meats. This caramelization enhances the texture and adds depth to the flavor, making it a key component in many barbecue recipes.

While butter, water, and vinegar are important in various cooking and barbecue techniques, they do not constitute a standard component of dry rubs, which are primarily a mixture of spices and seasonings, with sugar being a common sweetening agent used alongside ingredients like salt, paprika, garlic powder, and pepper.