French Dip Royale Sandwich Review

Pro tips

• Toast the sesame seed sub roll lightly to prevent sogginess from the au jus and juices from the roast beef.
• Warm the roast beef and au jus together before assembly to ensure the sandwich stays hot through to serving.
• Layer the caramelized onions evenly across the roast beef so each bite captures the sweet-savory balance.
• Dip the sandwich in warm au jus rather than pouring it directly inside to maintain structural integrity.

Substitutions

• Sesame seed sub roll → brioche bun or ciabatta roll (different texture and richness)
• Provolone cheese → Swiss cheese (milder flavor) or fontina (creamier melt)
• Garlic aioli → herb aioli or truffle mayo (different aromatic profile)
• Au jus → beef consommé or mushroom gravy (alternative dipping sauce)

Storage & make-ahead

Best enjoyed fresh immediately after assembly. Leftover roast beef and caramelized onions can be refrigerated separately for up to 3 days and reassembled with fresh roll and aioli.

What makes the French Dip Royale different from a regular French dip?

The Royale adds provolone cheese, caramelized onions, and garlic aioli instead of the basic roast beef and au jus, creating a richer, more complex flavor profile.

Is au jus included with this sandwich?

Au jus is meant to accompany the sandwich for dipping, though availability may vary by location as noted in this review.

Can you make a homemade version of this sandwich?

Yes, use quality deli roast beef, sliced provolone, sautéed caramelized onions, garlic aioli, and a fresh sesame seed sub roll, then serve with au jus for dipping.

What does horsey sauce pair well with in this sandwich?

Horsey sauce adds a sharp, tangy kick that complements the roast beef and sweet caramelized onions, though it's optional based on personal preference.