First Step: Prepare the Potatoes Begin by par-boiling the 1 pound of baby potatoes cut into ½-inch pieces in boiling, salted water for 5 minutes. This step softens them up so they cook evenly with the steak later. Once done, drain and let them cool for about 10 minutes to avoid sogginess in your foil packets.

Second Step: Cut and Season the Steak Next, take the 1 ½ pounds of top sirloin steak and cut it into pieces based on your preferred doneness aim for 2.5 to 3 inches for well-done results. In a large bowl, combine the steak with the cooled potatoes, 1 thinly sliced onion, 1 tablespoon olive oil, 2 tablespoons chopped fresh parsley, 1 tablespoon minced garlic, 1 tablespoon Italian seasoning, and salt and pepper to taste. Toss everything well to ensure even coating, which helps flavors meld perfectly in the packets.

Third Step: Assemble the Foil Packets Lay out four large pieces of heavy-duty aluminum foil, using a double layer if you’re cooking over a campfire. Divide the steak and potato mixture evenly among the foil sheets, then top each with 2 tablespoons of cubed butter for that garlic butter touch. For variations, you might add extras like green peppers or asparagus here to suit your tastes.

Fourth Step: Seal and Cook the Packets Carefully fold and seal the foil packets to prevent any juices from leaking, creating a tight envelope that traps steam and flavors. Now, choose your cooking method: On a hot grill, cook for 8-10 minutes per side until the potatoes are tender; on a campfire, place them on a 2-inch bed of coals; or in the oven, bake at 425°F for about 20 minutes, optionally broiling for 1-2 minutes for a charred effect. Remember to adapt for dietary needs, like using less oil for a lighter version.

Fifth Step: Serve and Enjoy Once cooked, open the packets carefully on a flat surface to let steam escape and avoid burns, then serve immediately for the best taste. This totals around 40 minutes from start to finish, making it ideal for busy parents or travelers. Pair it with a side salad for a complete meal that’s both satisfying and adaptable.