For best results use the KitchenAid Deluxe Hand Blender

Trim the ends and hard course green tops from the leeks and roughly chop

Place the chopper blade into the chopper bowl. Add the leeks, thyme and garlic

Cover and attach the motor body to the bowl. Press power and pulse on high speed for 10 - 15 seconds or until the leeks are chopped

Heat the oil and butter over medium high heat in a large, heavy based saucepan until foamy

Reduce heat to medium, add the leeks and cook for 2 minutes or until just softened. Add the potatoes and toss well. Cover and cook for 8 minutes or until golden

Add the wine and stock and simmer partially covered for 15 minutes or until tender

Stir in the cream or milk and season with salt and pepper

Attach the S - blade to the motor body (with the pan guard if using)

Place the blender into the soup and puree to desired consistency

Serve piping hot with crusty bread