Provolone, Basil, And Onion On Italian Bread

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Details

7 Ingredients

• 4 slices thick country Italian bread (preferably with sesame seeds)
• 1 Tbsp balsamic vinegar
• 8 thin slices provolone cheese
• 4 very thin slices red onion
• 6 to 8 basil leaves
• Freshly ground pepper
• 2 Tbsps butter