30-Minute Copycat Arby's Roast Beef Sandwich
This homemade version of the iconic fast-food sandwich features tender roast beef piled high on toasted sesame buns with a creamy cheese sauce and tangy Arby's-style sauce. The buns get an upgrade with egg wash, onion flakes, and poppy seeds for extra flavor and crunch. Perfect for lunch or a casual dinner when you're craving that classic roast beef sandwich experience at home. The warm beef broth step ensures the meat stays juicy and heated through.
Ingredients
Instructions
- 1
Preheat the oven to 350°F.
- 2
Beat the egg and brush the buns with the beaten egg.
- 3
Top the buns with onion flakes and poppy seeds.
- 4
Bake for 10 minutes until crispy.
- 5
Mix the cheese, milk, paprika, and salt in a pot.
- 6
Cook over low-medium heat, stirring frequently, until melted.
- 7
Heat the beef broth in a pot until it simmers.
- 8
Add the roast beef and warm for about a minute or two.
- 9
Spread the cheese sauce on the buns.
- 10
Top with the roast beef and Arby's sauce.
- 11
Serve warm.
Tips
Make your own Arby's sauce by mixing ketchup, hot sauce, brown sugar, garlic powder, and Worcestershire sauce to taste.
For extra authenticity, use thin-sliced deli roast beef and warm it gently in the broth to avoid overcooking.
Good to Know
Assembled sandwiches best eaten immediately. Store components separately in refrigerator for up to 3 days.
Buns can be prepared and cheese sauce made up to 1 day ahead. Reheat gently before assembling.
Serve immediately while warm for best texture and flavor.
Common Mistakes
Don't overheat the roast beef in broth to avoid tough, dry meat.
Keep cheese sauce on low heat to prevent scorching and separation.
Substitutions
Better texture and flavor
Closer to original
Lighter option
FAQ
Can I make this without the cheese sauce?
Yes, you can skip the cheese sauce and just use the Arby's sauce for a simpler version that's still delicious.
What if I don't have Arby's sauce?
Mix 1/2 cup ketchup, 2 tbsp hot sauce, 1 tbsp brown sugar, 1 tsp garlic powder, and 1 tsp Worcestershire sauce.
How long will leftovers keep?
Store components separately in refrigerator for up to 3 days. Reheat cheese sauce gently and warm beef in broth before assembling.