Beef Stew - Cooking like a Boss

True zero-pre-cooking slow cooker beef stew. Really tasty and very easy. Serve with mash.

800ml ⁴⁄₅l 53 ¹⁄₃tbsp 160tsp 3.38cup 1.41pint boiling water			mix up in slow cooker and cook for 8-10 hours on low
1 ¹⁄₃ beef stock cube	crumble
2 ²⁄₃ tbsp 0.04 l 40 ml 8 tsp 0.169 cup 0.07 pint tomato purée
1 ¹⁄₃ tbsp 0.02 l 20 ml 4 tsp 0.085 cup 0.035 pint Marmite
1200g 1 ¹⁄₅kg 2.65lb 42.3oz braising steak	cut into 3cm chunks
133 ¹⁄₃g 0.133kg 0.294lb 4.7oz smoked bacon lardons
2 ²⁄₃ onions	thinly slice
5 ¹⁄₃ carrots	peel	cut into 3cm chunks
5 ¹⁄₃ celery sticks	cut into 3cm lengths
4 tbsp 0.06 l 60 ml 12 tsp 0.254 cup 0.106 pint plain flour
1 ¹⁄₃ tsp 0.007 l 6 ²⁄₃ ml 0.444 tbsp 0.028 cup 0.012 pint salt
1 ¹⁄₃ tsp 0.007 l 6 ²⁄₃ ml 0.444 tbsp 0.028 cup 0.012 pint dried mixed herbs
1 ¹⁄₃ bay leaf
ground black pepper