Frozen Fries with That? - S10.E4

When the chefs, including two previous co-workers, find a classic but still-frozen ingredient in the appetizer basket, they must both heat it up and up the creativity level to impress the judges. Then, in the entrée round, a strange meat and a strong drink make for interesting basket fellows. In the dessert round, vinegar is in the mix. Will things go sour for the finalists?