
Try this flavour-packed savoury vegetable pie. It's delicious.

400 grams plain (all-purpose) flour
half a tsp salt
200 grams cold unsalted butter
200 ml cold water
450 grams leeks
450 grams potatoes
1 small onion
1 small carrot
100 gram (divided)s unsalted butter
50 grams flour
1 tsp thyme
1 tsp sage
salt and white pepper to taste
250 ml milk1 egg and a splash of milk for glazing.