Ham Sandwich with Crunchy Maille® Cornichons

Ingredients

• ✓ 3 Maille® Cornichons
• ✓ 4 sesame or poppy seed rolls
• ✓ 1 tomato
• ✓ 4 slices cooked ham
• ✓ 1 tablespoon finely chopped shallots
• ✓ 1 bunch parsley
• ✓ Few leaves of lettuce
• ✓ Butter