The most straightforward way to thin out salsa is to add liquid, such as water, tomato juice, vegetable broth, or even more chopped tomatoes. Start by adding a small amount of liquid and gradually add more until you reach the desired consistency.
Use a food processor or blender.
If you want a smooth, thin salsa, you can use a food processor or blender to purée it. This will break down the ingredients into smaller pieces and make the salsa thinner.
Cook the salsa.
Cooking the salsa will help to evaporate some of the liquid, which will make it thicker. If you want a thinner salsa, cook it for a shorter amount of time.
Add some sour cream or yogurt.
Sour cream or yogurt will add creaminess and help to thin the salsa.
Add a binder.
A binder, such as cornstarch, can help thicken salsa. To use a binder, whisk together a small amount of cornstarch with cold water until a smooth paste forms. Then, add the paste to the salsa and bring to a simmer, stirring constantly. Continue to simmer until the salsa has thickened to the desired consistency.