Chicken meat with tuna sauce/Chicken Tonnato – Modern family cook

Ingredients

• Chicken breast: 4 половинки
• Onion: 1 шт
• Carrot: 1 шт
• Celery root: 100 г
• Salt: 1 чл
• Grounded black pepper: 1/4 чл
• Water: 1,25 л
• Anchovy fillets: 3
• Canned tuna: 150 г
• Yolk: 1 шт
• Dijon mustard: 1 ст л
• Lemon juice: 1 ст л
• Salt: 1/4 чл
• Extra Virgin olive oil: 100 ml
• Capers: 1 стл
• Arugula: горсть
• Extra Virgin olive oil: 1 tsp
• Salt: to taste
• Balsamic vinegar: to taste