500g potatoes

4 rashers bacon

some red onion

70g margarine

1/2 cup plain flour

3 cups milk

some cheese

Preheat oven to 180 degrees, grease casserole dish

Boil potatoes for 10 mins, then allow to cool

Meanwhile fry bacon

Slice cooled potaoes, layer in dish with bacon and red onion

To make sauce, melt margarine

Add plain flour and slowly whisk in milk until a thick sauce develops

Pour sauce over potato and sprinkle with cheese

Bake in oven until golden