Chestnut and Bacon Soup - Cooking like a Boss

¹⁄₄ tbsp 0.004 l 3 ³⁄₄ ml ³⁄₄ tsp 0.016 cup 0.007 pint olive oil	melt		cover and sweat over low-medium heat for 5 minutes	cook for 5 minutes until veg tender but not coloured	simmer for 30 minutes	remove bay leaf and thyme	blend until smooth
6 ¹⁄₄g 0.006kg 0.014lb 0.22oz butter
¹⁄₄ small onion	chop
¹⁄₄ small leek	trimmed and washed	chop
¹⁄₄ stick of celery	trimmed	chop
¹⁄₄ small carrot	chop
¹⁄₄ clove garlic	peeled and crushed
¹⁄₄ bay leaf
¹⁄₄ sprig thyme
1 ¹⁄₂ rashers smoked bacon	dice
75g 0.075kg 0.165lb 2.65oz potatoes	peeled and cut into chunks
¹⁄₄l 250ml 16 ²⁄₃tbsp 50tsp 1.06cup 0.44pint veg or chicken stock
100g 0.1kg 0.22lb 3.53oz cooked and peeled chestnuts