Cook on medium heat for even browning. Use sturdy bread to maintain structure. Let sandwich rest briefly before slicing for best texture.
Epic Gourmet Roast Beef Panini Bold Flavor Upgrade
Crispy sourdough bread filled with tender roast beef, melted provolone, caramelized onions, and tangy mustard sauce.
Ingredients
Scale
8 slices sourdough bread (1 pound / 450 g)
12 ounces (340 g) thinly sliced roast beef
8 slices provolone cheese (8 ounces / 225 g)
½ cup (120 g) caramelized onions
2 tablespoons (30 g) Dijon mustard
2 tablespoons (30 g) mayonnaise
2 tablespoons (30 ml) olive oil or melted butter
Instructions
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Mix mustard and mayonnaise.
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Layer cheese, roast beef, and onions on bread.
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Brush outside with oil or butter.
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Press and cook 4–6 minutes until golden and melted.
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Rest briefly before slicing.