Dinner

Spicy Garlic Butter Steak and Potato Foil Packets Recipe

ByMariam Harutyunyan November 29, 2025November 29, 2025

Introduction

This Spicy Garlic Butter Steak and Potato Foil Packet recipe brings together tender steak, hearty potatoes, and a flavorful garlic butter sauce with a kick of jalapeno. It’s an easy and delicious meal perfect for oven or grill cooking, making it ideal for weeknights or outdoor gatherings.

The image shows a close-up of a cooked meal served on crinkled aluminum foil, placed on a white marbled surface. The dish has three main layers: the bottom layer consists of small chunks of cooked beef that are brown with a slightly grilled texture; the middle layer contains pieces of red and white potato chunks, with some pieces showing skin and others peeled, scattered among the meat; on top is a green herb paste or sauce with a rough texture spread over the meat, garnished with a whole sprig of rosemary and sprinkled with small bits of fresh chopped parsley. There is a light broth or sauce pooling at the bottom, partially soaking the ingredients. The foil edges are open and jagged around the food, showing the dish is freshly cooked. Photo taken with an iphone --ar 4:5 --v 7

Ingredients

2 pounds sirloin steak (or ribeye, strip, tri-tip, or filet)
2 pounds red potatoes

1/4 cup minced jalapeno (about 2 jalapenos)
6 tablespoons softened salted butter

2 tablespoons minced fresh parsley
2 teaspoons salt

2 teaspoons black pepper
2 teaspoons granulated garlic
1 tablespoon Worcestershire sauce

4 sprigs rosemary (about 2 inches in length)

Instructions

Step 1: Preheat your oven to 375°F or prepare an outdoor grill to medium-high heat, around 400°F. Bring a medium-sized pot of water to a boil.
Step 2: Cube the steak into bite-size pieces, trimming any excess fat or sinew. Set aside.

Step 3: Cube the red potatoes into bite-size pieces. Par-cook them by boiling for 5 minutes or microwaving in a dish with 3 tablespoons of water for 3 minutes. They should be slightly firm but starting to soften.
Step 4: Lay out four 14×18 inch pieces of aluminum foil. On each piece, place 1/2 pound of steak, 1/2 pound of potatoes, and about 1 tablespoon of minced jalapenos. Adjust jalapeno quantity to your preferred spice level.
Step 5: In a small bowl, mix together the softened butter, minced parsley, salt, black pepper, granulated garlic, and Worcestershire sauce. Divide this butter mixture evenly and spoon it over the potatoes and steak on each foil packet. Place a rosemary sprig on top of each.

Step 6: Fold and wrap the foil to seal each packet tightly, ensuring no juices can escape.
Step 7: Place the foil packets directly on the oven rack and bake for 25 to 30 minutes. If grilling, place packets on the grill grates and cook for 15 to 20 minutes. For well-done steak, add an extra 5 to 7 minutes of cooking time.

Tips & Variations

Try adding sliced bell peppers or onions to the packets for extra flavor and veggies.

Use different herbs like thyme or oregano instead of rosemary for a different herb profile.
For a milder dish, reduce the jalapeno or remove the seeds before mincing.
Using ribeye or filet will give a more tender texture compared to sirloin.

Storage

Store any leftovers in an airtight container in the refrigerator for up to 3 days. To reheat, unwrap the foil packets and warm them in the oven at 350°F for about 10-15 minutes until heated through. Avoid microwaving to keep the steak tender.

How to Serve

The image shows a foil packet meal with cooked meat chunks as the main layer, covered in a peppered herb sauce with small bits of chopped green celery scattered on top. Surrounding the meat are thick-cut, roasted red potato wedges, pale inside with reddish skin edges, sprinkled with green herbs. A sprig of fresh rosemary lies across the center, adding a rustic touch. A woman’s hand is holding a metal fork, piercing a piece of the meat. The foil has a crumpled silver texture around the food, reflecting some light. The scene has the look of a close, warm, and cozy meal. photo taken with an iphone --ar 4:5 --v 7

Serve this delicious recipe with your favorite sides.

FAQs

Can I use another type of potato?

Yes, Yukon Gold or baby red potatoes work well. Just make sure to par-cook them so they finish cooking evenly with the steak.

Can I prepare the packets ahead of time?

Absolutely. Assemble the packets in advance and keep them refrigerated. When ready, bake or grill—just add a few extra minutes to the cooking time since they’ll be cold from the fridge.