Leek, Potato and Cheddar Cheese Pie

• 450 g ‘old’, floury potatoes
• 450 g leeks
• 55 g

Cook the potatoes in salted boiling water. Cut the green parts off the leeks, wash the white parts well and cut into 1cm rounds. Melt the butter in a casserole, toss in the leeks, season with salt and freshly ground pepper, cover and cook for 20 minutes on a very low heat. Make the cheese sauce but add the crushed garlic; it should be a light coating consistency. When the potatoes are cooked, p