INGREDIENTS
•
16 slices pancetta
•
2 teaspoons coarsely ground black pepper
•
1 large beefsteak tomato, thickly sliced
•
¼ cup olive oil, divided
•
1 tablespoon balsamic vinegar
•
Coarse salt
•
8 leaves escarole
•
2 tablespoons Champagne vinegar
•
2 tablespoons softened butter
•
8 slices sourdough bread
•
¼ cup mayonnaise
•
¼ cup crème fraîche
•
1 tablespoon malt vinegar