Dice the potatoes into 1-inch cubes. Toss with olive oil, everything bagel seasoning, crushed garlic, jalapeno juice and black pepper.
Tear off a large piece of tine foil, and pour potatoes into the center. Wrap the foil around the potatoes to create a closed packet
Grill or bake the potatoes for 30-40 minutes until cooked through. If baking, I suggest a 400ºF oven.