Bitter Caesar Salad

Ingredients

• 1 rounded teaspoon anchovy paste
• 2 teaspoons Dijon mustard
• 1 clove garlic, grated or minced
• 1 teaspoon Worcestershire sauce
• 1 lemon
• 1/3 cup extra-virgin olive oil
• 1/2 cup grated Romano cheese
• Coarse black pepper
• 2 small heads or 1 large head escarole, coarsely chopped or torn
• 1 head Treviso (long leaf radicchio) coarsely chopped or torn
• 1 cup store-bought good quality croutons or 2 to 3 slices semolina bread, toasted and cubed