Save to Pinterest This French Dip Grilled Cheese brings together everything you love about a classic French dip—juicy roast beef and rich au jus—wrapped in gooey melted cheese and golden crisp bread. Every bite is hearty and satisfying with sweet caramelized onions and a decadent cheesy pull, perfect for an impressive lunch or casual dinner.
My family first tried this on a chilly weekend when we wanted comfort food that felt a little special. Now, even the picky eaters light up at the smell of onions caramelizing.
Ingredients
- Crusty French bread eight slices: The bread is the backbone so select a loaf with a crisp crust and tender crumb
- Swiss cheese eight slices: Its nutty creaminess melts beautifully but you can swap in any good melting cheese
- Thinly sliced roast beef twelve ounces: Use deli or homemade Just ensure it is not too fatty and looks fresh and rosy
- Yellow onions two medium sliced: Their natural sweetness emerges as they caramelize Choose firm unblemished bulbs
- Unsalted butter four tablespoons plus extra: Look for sweet cream butter for best flavor
- Olive oil one tablespoon: Adds depth to the onions Extra virgin works best
- Beef broth two cups low sodium: Go for boxed stock with clean beefy flavor or homemade if available
- Worcestershire sauce two teaspoons: Adds savoriness A pantry essential
- Soy sauce one teaspoon: Deepens umami Choose low sodium if salt-sensitive
- Garlic one clove minced: Use fresh garlic for real punch
- Fresh thyme one sprig: Fragrant and herbal Just a little brings classic French flavor
- Salt and pepper To taste: Always taste and adjust after simmering the au jus
Instructions
- Caramelize the Onions:
- Melt one tablespoon butter with olive oil in a large skillet over medium heat Add onions and stir often for fifteen minutes until they turn amber and jammy This slow process is what gives the filling its gourmet character
- Simmer the Au Jus:
- After removing onions wipe the skillet clean In a saucepan combine beef broth Worcestershire soy sauce garlic and thyme Bring to a gentle simmer and let bubble for five minutes Strain to catch the thyme and garlic bits and keep warm for dipping later
- Assemble the Sandwiches:
- Lay out four slices French bread across your work surface Top each with Swiss cheese then a mound of roast beef a generous scoop of caramelized onions another slice of cheese and finish with remaining bread Press gently so nothing topples out
- Butter the Bread:
- Spread a thin layer of butter on the outside of each sandwich edge to edge For the crispest results use butter at room temperature to avoid tearing the bread
- Grill to Perfection:
- Heat a clean skillet or griddle over medium heat Place sandwiches butter side down and cook three or four minutes per side using a spatula to press slightly Flip when golden brown Continue until both sides are crisp and cheese is fully melted
- Serve and Dip:
- Remove sandwiches from the pan and slice in half Serve immediately with the warm au jus in small bowls for the ultimate dipping experience
Save to Pinterest My personal favorite ingredient is the sweet pile of caramelized onions Nothing else says homemade crave-worthy sandwich quite like that golden tangle My son loves dunking each bite in the hot broth and always declares it the best part
Storage Tips
Wrap leftover sandwiches tightly in foil and store in the fridge for up to two days Reheat in a toaster oven or on a skillet to keep the crust crisp Extra au jus can be refrigerated for three days Rewarm gently on the stove before serving
Ingredient Substitutions
Provolone or Gruyère cheese melt beautifully if you do not have Swiss If French bread is not available try a nice Italian loaf or even sturdy sourdough Vegetarian version Swap roast beef for roasted portobello mushrooms and use rich vegetable broth
Serving Suggestions
Pair with a peppery arugula salad or classic French fries Add a hint of horseradish cream or spicy mustard spread inside the bread for zing Serve with pickles or a bright side salad to balance the richness
Cultural and Historical Inspiration
The French dip sandwich originated in early twentieth-century Los Angeles but this grilled cheese twist amps up the nostalgia and comfort Today it is a beloved classic in American diners and delis everywhere
Seasonal Adaptations
Use sharp cheddar or smoked gouda in the fall for extra coziness In summer lighten it up with fresh tomatoes tucked inside For holidays add a touch of truffle oil to the au jus for luxury
Save to Pinterest Enjoy every cheesy, savory bite—the ultimate comfort sandwich you'll crave again and again.
Common Recipe Questions
- → Which bread works best for this sandwich?
Crusty French bread is recommended for its sturdy texture and crispness when grilled, enhancing the sandwich's flavor.
- → Can another cheese be substituted for Swiss?
Provolone or Gruyère are excellent alternatives, offering a different taste profile while still melting smoothly.
- → Is deli roast beef suitable?
Yes, deli roast beef or leftover roast beef are both convenient choices for assembling this sandwich quickly.
- → How do I caramelize onions perfectly?
Cook slowly over medium heat with butter and oil, stirring often until soft and deeply golden, typically 12-15 minutes.
- → What can I serve alongside this dish?
A fresh salad or crispy French fries are classic pairings, balancing richness with crisp and light elements.
- → Can the au jus be made ahead?
Absolutely—prepare and strain it in advance, then gently reheat before serving with the sandwich.