Shred not cauliflower and broccoli then boil for just few minutes they must not be too soft and put in a bowl to cool

For cheese sauce melt butter in a sauce pan

Stir in flour and cook for 1-2 minutes

Take the pan off the heat and graduallybstir in milk to get a smooth sauce

Summer gently for 8-10 minutes and season with salt and pepper

Then on the cooled broccoli and cauliflower add sweet corn then cheese sauce and serve