Leek, Potato and Pea Soup for 6

Scaled to serve 4

2.7 large leeksslicedsweat 10 minboil and simmer 10-15 minsimmer 5 minutesblendserve
60.0 g of butter
1.3 medium potatoes
1.3 l of stock
150.0 g of frozen peas
1.3 tsp of mint sauce
0.7 tbsp of parsley
0.7 salt
0.7 pepper
0.7 blob of soured cream