You boil the leftover marinade to make a sauce. Stop right there. That liquid has been sitting on raw chicken. Even if you boil it, the texture and safety are questionable. Your best bet is to discard the used marinade.
If you want a sauce from the same flavors, just set aside a fresh batch of the marinade before you toss it with the raw chicken. Label it “sauce” so you don’t accidentally grab the raw one. I once used the wrong bowl, and my dinner tasted like regret. Learn from my mistakes.
Can You Marinate Frozen Chicken?
This is a hot take, but some people swear by it. You can toss a frozen breast into a zip-top bag with marinade and let it thaw in the fridge overnight. It’s safe, and the marinating process starts as it thaws. Just know that the flavor won’t penetrate as deeply because the meat is still icy in the middle.
It’s like trying to hug someone who’s wearing a winter coat. You’ll get a little warmth, but not the full cuddle. For best results, thaw first, then marinate.
