Do you Keep tomato sauce covered or uncovered while cooking?

It depends on the recipe and personal preference. Generally, tomato sauce is cooked uncovered to allow the liquid to reduce and concentrate the flavors. Leaving the pot uncovered also helps to prevent the sauce from splattering. However, some recipes may call for covering the pot to simmer the sauce more gently or to prevent too much evaporation. If you are unsure whether to cover or uncover your tomato sauce, it is best to follow the recipe instructions