Name: Foil Pack French Dip Sandwiches Recipe
Prep time: 10 min
Cook time: 10 min
Total time: 20 min
Cuisine: American
Ingredients: 8 tablespoons unsalted butter (1/2 cup, softened to room temperature); 1 tablespoon au jus gravy mix (from 1 package, divided); 1 teaspoon Worcestershire sauce; 3/4 teaspoon dried minced garlic; 1/2 teaspoon onion powder; 1 long/large baguette (or 2 smaller baguettes); 1 pound deli roast beef (ask for rare); 12 slices provolone cheese (1 pre-sliced package, sliced in half); Remaining au jus gravy mix (from 1 package); 2 cups cold water

Jump to Recipe· 4.1 from 90 reviews

If you’re anything like me, you know the magic of a sandwich that’s both easy to make and incredibly flavorful. The Foil Pack French Dip Sandwiches Recipe is one of those gems that brings tender roast beef, melty provolone cheese, and garlicky, buttery goodness all wrapped up in toasty baguette slices. Not only does the foil pack method lock in all that deliciousness, but it’s also perfect for grilling or baking, making it a fantastic choice for a quick weeknight meal or a fun cookout treat. Get ready for a sandwich experience that’s messy in the best way and packed with comforting flavor.

Ingredients You’ll Need

The image shows a long loaf of golden brown bread with crispy crust, sliced evenly but still connected at the bottom. Thin pale yellow slices of cheese are placed between each slice of bread, standing upright and peeking out. Next, dark pink slices of roast beef with a slightly browned edge are folded and tucked between the bread and cheese layers, creating a rich contrast of colors and textures. The final image shows two woman's hands wrapping the loaded sandwich tightly with shiny silver aluminum foil, all placed on a white marbled surface photo taken with an iphone --ar 4:5 --v 7

The beauty of the Foil Pack French Dip Sandwiches Recipe lies in its simplicity. Just a handful of ingredients come together to create layers of taste, from the rich butter mixture to the savory roast beef and melty cheese, all balanced with the crispy bread’s satisfying crunch.

Unsalted butter (8 tablespoons): Softened to room temperature for easy mixing and rich flavor.
Au jus gravy mix (1 package, divided): Adds that classic French dip savory dipping sauce taste.
Worcestershire sauce (1 teaspoon): Packs a deep, umami punch that elevates the butter mixture.
Dried minced garlic (3/4 teaspoon): Imparts a fragrant garlic aroma throughout the sandwich.
Onion powder (1/2 teaspoon): Gives a subtle sweetness and depth to the butter spread.
Long or large baguette (1): The perfect crusty bread to hold all the fillings together.
Deli roast beef (1 pound): Ask for rare to preserve tenderness once heated.
Provolone cheese slices (12): Melt beautifully for a gooey texture between each bite.

How to Make Foil Pack French Dip Sandwiches Recipe

Foil Pack French Dip Sandwiches Recipe - Recipe Image

Step 1: Preheat Your Cooking Surface

Start by preheating your grill to medium-high heat or your oven to 400°F. Having the right temperature ensures your sandwiches get that perfect toasty exterior and melty, irresistible cheese inside.

Step 2: Mix the Butter Spread

In a medium bowl, combine the softened butter with 1 tablespoon of the au jus gravy mix, Worcestershire sauce, dried minced garlic, and onion powder. Stir these together until smooth and well blended. This buttery mixture is what makes your sandwich layers pop with flavor.

Step 3: Prepare the Baguette

Slice the baguette into sections about 6 to 10 inches long. Then carefully create an odd number of thin slices (roughly half an inch thick) in each section, cutting about three-quarters of the way down but not through. This technique creates those lovely pull-apart sandwich layers full of flavor.

Step 4: Spread Butter Inside the Slices

Divide your butter mixture into two equal parts. Use half of it to spread inside each baguette slice. This step infuses the bread with garlicky richness before adding your fillings.

Step 5: Add Cheese and Roast Beef

Take your provolone slices and cut them in half. Place one piece of cheese along with one slice of roast beef between every two bread slices. This layering is what creates those irresistible little pockets of flavor.

Step 6: Brush Remaining Butter Over the Sandwiches

Use the remaining butter mix to brush the tops and sides of the baguette. This not only adds moisture but also helps the outside become deliciously crispy when cooked.

Step 7: Wrap and Cook

Wrap each baguette section tightly in foil, making sure no bread is left exposed. Place the foil packs on the grill or in the oven. Cook for about 10 minutes in the oven or 6 to 9 minutes on the grill, turning occasionally to ensure even heating. The cheese will melt, and the bread will toast perfectly.

Step 8: Prepare the Au Jus

While the sandwiches cook, whisk the remaining au jus gravy mix with 2 cups of cold water in a saucepan. Bring this to a boil, then reduce to a simmer until slightly thickened. This warm dip brings the whole meal together with that signature French dip moisture and flavor.

Step 9: Serve and Enjoy

Carefully unwrap the foil packets—watch out for steam! Pull apart your sandwiches and serve them with the hot au jus for dipping. Each bite is a melt-in-your-mouth adventure that’s simply unforgettable.

How to Serve Foil Pack French Dip Sandwiches Recipe

Garnishes

Keep it simple with fresh parsley or chives sprinkled over the sandwiches for a pop of color and a hint of freshness. Adding a few pickles on the side also complements the rich beef and cheese beautifully.

Side Dishes

The classic French fries or crispy sweet potato fries are perfect companions to soak up any extra au jus. If you want something lighter, a crisp green salad with a tangy vinaigrette provides a refreshing contrast to the richness.

Creative Ways to Present

Try placing the pull-apart sandwich sections on a large wooden board surrounded by small bowls of au jus, pickles, and mustards. This invites everyone to dig in and makes for a fun, interactive meal that’s perfect for casual get-togethers.

Make Ahead and Storage

Storing Leftovers

Wrap any leftover sandwiches tightly in foil or store them in an airtight container in the refrigerator. They will keep well for up to 3 days, making it easy to enjoy the deliciousness later without any hassle.

Freezing

You can freeze the fully assembled, but uncooked sandwiches wrapped in foil for up to 2 months. When ready, thaw overnight in the refrigerator before cooking as directed to enjoy a convenient, hearty meal anytime.

Reheating

To reheat, unwrap the foil and place the sandwiches in a preheated oven at 350°F for about 10 minutes until warmed through and the cheese melts again. A quick dip in the au jus after heating will refresh all those wonderful flavors.

FAQs

Can I use a different type of bread for this recipe?

Absolutely! While a crusty baguette gives the best texture, Italian bread or ciabatta can work well too. Just make sure the bread is sturdy enough to hold the fillings and soak up the butter mixture without falling apart.

Is it necessary to use rare roast beef?

Using rare roast beef is recommended since it will finish cooking during the heating process and stay tender. However, leftover cooked roast beef can also be used if that’s what you have on hand.

Can I make this recipe vegetarian-friendly?

This recipe heavily relies on beef for its signature flavor, but you could try replacing the roast beef with grilled mushrooms or seasoned seitan and adjusting the au jus accordingly for a vegetarian twist.

What is the best way to reheat without drying out the sandwich?

Reheating in foil in the oven helps retain moisture and keeps the cheese melted. Avoid microwaving directly as it can make the bread soggy and the meat tough.

Can I prepare the sandwiches ahead of time?

Yes! You can assemble the sandwiches up to a day in advance, keep them wrapped tightly in foil, then simply heat them up when you’re ready to serve. This makes entertaining a breeze.

Final Thoughts

The Foil Pack French Dip Sandwiches Recipe is a real crowd-pleaser that’s both simple and satisfying. Whether you’re cooking for family, friends, or a casual weekend meal, this recipe delivers cozy, indulgent flavors with minimal fuss. I encourage you to try it out soon—the sensory joy of pulling apart these layers of buttery bread, melty cheese, and juicy beef dipped in savory au jus will quickly make it a new favorite in your recipe rotation.