One Secret and the Meat Will Melt in Your Mouth Like Butter

食材

beef: 2 kg (4 lb)

beer: 500 ml (17 fl oz)

butter: 100 g (3.5 oz)

onion: 3 pc

garlic: 15 g (0.5 oz)

mushrooms: 300 g (11 oz)

bacon: 100 g (3.5 oz)

soy sauce: 50 ml (1.7 fl oz)

mustard: 30 g (1.1 oz)

sweet paprika: 3 g (0.1 oz)

salt: 3 g (0.1 oz)

black pepper: 2 g (0.1 oz)

starch: 30 g (1.1 oz)

scallions: 10 g (0.4 oz)

parsley: 10 g (0.4 oz)

Additionally

potatoes: 600 g (21 oz)

water: 1 l (34 pt)

salt: 3 g (0.1 oz)

butter: 100 g (3.5 oz)

warm milk: 100 ml (3.4 fl oz)

parmesan: 30 g (1.1 oz)

black pepper: 1 g (0.0 oz)

salt: 2 g (0.1 oz)