Ingredients

• 1 medium onion, finely chopped
• 1 tablespoon butter/ margarine
• 1 teaspoon flour
• 375ml milk
• 125ml strong cheddar cheese (more if desired), grated
• a pinch of cayenne pepper

Method

Place the onion and butter/ margarine in a deep microwave- proof container and microwave on high for two and a half minutes. Stir and microwave on high for a further two and a half minutes. Add the flour and stir well. Microwave on high for 1 minute. Add the milk, stir and microwave for 2 and half minutes on high. Add the cheese, stir  and then microwave for a further two and a half minutes on high. Add cayenne pepper and serve.