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Gourmet Roast Beef and Cheddar Melt Sandwich

A delicious sandwich combining tender roast beef and sharp cheddar cheese with a creamy horseradish aioli for an exciting lunch or dinner option.
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Prep Time 10 minutes
Cook Time 8 minutes
Total Time 18 minutes
Servings: 2 servings
Course: Dinner, Lunch
Cuisine: American
Calories: 520
Ingredients Method Notes

Ingredients
  

For the Sandwich
  • 4 slices Sourdough bread (thick-cut)
  • 8 oz Deli roast beef (thinly sliced, high quality)
  • 4 slices Sharp cheddar cheese (or 4 oz shredded)
  • 1/4 cup Red onion (very thinly sliced)
  • 2 tbsp Unsalted butter (softened, or mayonnaise)
For the Horseradish Aioli
  • 1/4 cup Mayonnaise
  • 1 tbsp Prepared horseradish (drained well)
  • 1/2 tsp Dijon mustard
  • 1/4 tsp Black pepper (freshly ground)
  • Pinch Salt

Method
 

Prepare the Horseradish Aioli
  1. In a small bowl, mix the mayonnaise, horseradish, Dijon mustard, black pepper, and a pinch of salt. Stir until everything is combined well.
Assemble the Sandwiches
  1. Take two slices of sourdough bread. Spread the horseradish aioli on each slice. Layer the roast beef, cheddar cheese, and red onion on one slice. Top with the other slice of bread.
Grill the Sandwiches
  1. Heat a skillet over medium heat. Spread the softened butter (or mayonnaise) on the outer sides of the sandwich. Place the sandwich in the skillet and grill for about 3-4 minutes on each side or until the bread is golden brown and the cheese is melted.
Serve
  1. Remove the sandwich from the skillet, slice it in half, and serve warm.

Notes

Use high-quality roast beef for the best flavor. If you prefer a spicy kick, add extra horseradish to the aioli. For added freshness, include leafy greens like spinach or arugula inside the sandwich.