1. Fry chips from frozen as packet instructions.2. Heat butter in a pan, add sliced mushrooms, salt, pepper, garlic and chillies. Toss.3. Cook till mushroom are tender.4. Warm cheddamelt sauce in a saucepan. 5. Smash melrose and add to the sauce. Mix in.6. Add mushrooms to it. Do not boil.7. Remove from heat.8. Spoon sauce over fried chips and sprinkle over grated cheese. Serve.