GRANDMA'S SECRET TSO'S SAUCE

Ever since I was a little kiddo, my grandma used to often make this incredible chicken/pork/tofu dish with the best/tastiest/most mouthwatering sauce. She would tell me it was her secret recipe, but she rarely wrote it down! All I know/remember/have is that it had this sweet and tangy flavor/taste/kick. It was always so popular/delicious/scrumptiou