Vegan Hamburger Steak with Mashed Potatoes & Gravy | Recip - Zucker&Jagdwurst

Ingredients

• 1000 g (2.2 lb) floury potatoes
• 4 tbsp vegan butter
• 100 ml (0.5 cup) plant-based milk
• 1 pinch of nutmeg
• salt
• pepper
• 2 onions
• 250 g (8.75 oz) brown mushrooms
• 2 tbsp vegan butter
• 2 tbsp tomato paste
• 1 tbsp mustard
• 2 tbsp flour
• 500 ml (2 cups) vegetable stock
• 100 ml (0.5 cup) (non-alcoholic) red wine
• 1 bay leaf
• 2 tbsp soy sauce
• 1 tsp marjoram
• sugar
• 4-6 burger patties (e.g. "Red Bean Umami Style" from Bunte Burger)
• fresh parsley