Flank Steak with Mashed Potatoes

Ingredients

• 1 package Redefine Flank Steak (200g), defrosted
• 2 tbsps. Olive oil (30g)
• Maldon salt (to taste)
• Freshly ground black pepper (to taste)
• 2 tbsps. Vegan butter (30g)
• 3 Thyme sprigs (1g)
• 2 Garlic cloves, crushed (6g)
• 2 Onions, chopped (400g)
• 3 cloves Black garlic (30g)
• 4–5 Celery stalks, chopped (200g)
• 3–4 Carrots, chopped (200g)
• 5 liters Water (5kg)
• 2 tbsps. Corn starch (10g)
• 1/2 cup Dried shiitake (20g)
• 1/4 cup Tomato paste (60g)
• 3 Bay leaves
• 3 pinches Allspice, grounded
• 1 tbsp. Marmite (14g)
• 1/4 cup Soy sauce (50g)
• 2 kg Potatoes
• 1 kg Coarse salt
• 1 kg Coarse salt 2 cups Butter (400g) *
• 2/3 cup Milk (120g) *
• Salt, to taste