Beef Bourguignon with Mushrooms

WHAT YOU'LL NEED

• 800 g casserole steak, cut into large chunks
• 2 tbsp flour mixed with some black pepper
• 2 tbsp vegetable oil, plus extra for frying
• 1 large onion, chopped
• 5- 6 cloves garlic, left whole with the skin on
• 1/4 celery stick
• 1 bay leaf
• A few sprigs thyme
• A few sprigs flat leaf parsley
• 1/2 bottle full bodied red wine
• 28 grams Knorr Rich Beef Stock Pot, dissolved in
• 400 ml boiling water
• 3 rashers unsmoked bacon, cut into thin strips
• 200 g wild mushrooms, cut in half (if large)