Ingredients
3 large leeks
1/4 cup butter
2 Tablespoon of oil
2 teaspoon of flour
1 teaspoon of wholegrain Irish mustard, or to taste
6 1/4 cups of chicken stock
Ground black pepper to taste
1/2 cup grated cheese (prefer Kerrygold or another Irish cheddar cheese
Directions
Slice leaks thinly and rinse off if needed
Heat butter and oil in a heavy pot and cook the leaks in it covered for 10-15 minutes to soften them but not to brown them
Take grated cheese and add to pot, stirring over low heat until melted
Add flour and cook for 2 minutes stirring with wooden spoon
Add black pepper and mustard
Gradually add chicken stock and blending it well
Bring soup to a boil then reduce to a simmer for about 15 minutes
Serve the soup with extra grated cheese, a melting cheese like Cashel Blue and/or,chives