If you've made your chimichurri sauce with fresh herbs like parsley, oregano, and cilantro, it's best to use it within a week or two. This is because fresh herbs can be a bit delicate and can lose their flavor and potency over time. But, if you're using dried herbs, you've got a bit more time, like a few months, to enjoy your sauce.
Now, let's talk about the acid test, literally! If you're using a lot of lemon juice or vinegar in your chimichurri sauce, it will last longer than one with less acidity. Think of it like a natural preservative, it helps keep the sauce fresh and prevents the growth of unwanted bacteria. So, if you're making a big batch, don't be shy with the lemon juice!
Chimichurri Steak - Insanely Good