Soup/Guiness Beef Stew

Ingredients

• 2.50 lbs brisket
• 1 tbsp olive oil
• 900g onion
• 2 carrots
• 3 ribs celery
• 1.50 red onion
• 12 ounce mushrooms
• 4 clove garlic
• 2 tsp rosemary
• 1 can Guinness stout
• 1.50 cup white flour
• 2 tsp baking powder
• 1 tsp salt
• 0.50 cup butter
• 2 tbsp white flour
• 1 Salt & pepper
• 1 cup cheddar cheese
• 1 egg yolk
• 1 tbsp water