1 tablespoon butter 1 tablespoon olive oil 2 finely sliced baby leeks (or fat spring onions) 300 grams risotto rice 125 millilitres white wine ½ teaspoon Dijon mustard 1 litre hot vegetable stock 125 grams chopped Cheddar cheese 2 tablespoons chopped fresh chives Melt the butter and oil in a medium-sized pan and cook the…