Be sure to cut your steak into pieces that are at least 2×2 inches, and potatoes into pieces smaller than one inch. This ensures even cooking.*For medium doneness on the steak, boil the potatoes first for five minutes before adding to the bowl and proceeding with the rest of the recipe. This will help them to cook faster once in the foil pack.**If you prefer a char on your steak, you can open up the packets at the end and cook for a couple minutes directly on the grill, or for baking you can switch oven to broil for a few minutes (with packets opened).