For those mid winter ailments leek and potato soup is hearty and warming. 80g Butter 1 tbsp olive oil 2 leeks, sliced ½ onion, chopped 1 clove garlic peeled 3 cups chicken stock (preferably home made) 3 good sized Potatoes, peeled & diced A good handful of spinach, chopped ½ cup cream Salt & Pepper…