French Dip Sandwich

Pro tips

• Toast the baguette cut-side down in a skillet or oven until golden to create a moisture barrier that prevents sogginess when dipping.
• Layer the horseradish cream on the bottom half before adding beef so it doesn't slide off during assembly.
• Add the roast beef while the cheese is still melting so the heat helps it adhere to the sandwich.
• Keep au jus warm in a small ramekin or shallow bowl for optimal dipping throughout eating.

Substitutions

• Provolone → Swiss cheese (milder, equally melty)
• Horseradish cream → Spicy brown mustard (tangier, less creamy)
• Roast beef → Prime rib slices (richer, more upscale)
• Baguette → Ciabatta roll (more robust structure)

Storage & make-ahead

Best served immediately. Leftover roast beef keeps refrigerated up to 3 days; rewarm gently and reassemble on fresh toasted bread.

Can I make the au jus ahead of time?

Yes, prepare au jus up to 2 days ahead and reheat gently before serving. Store in an airtight container in the refrigerator.

What type of baguette works best?

Use a fresh, crusty French baguette with a sturdy interior that won't fall apart when dipped. Day-old baguettes are actually ideal for their firmness.

Can I substitute the provolone cheese?

Yes, Swiss cheese or white cheddar work well as alternatives, offering similar melting properties and complementary flavors.

How do I slice the roast beef thin enough?

Use a sharp knife and slice against the grain, or ask the deli counter to slice it thin (about 1/8-inch thickness) when you purchase the roast beef.

Should I toast the baguette?

Yes, toasting the baguette helps it hold up to the au jus dipping and prevents sogginess. Toast cut-side down until golden.