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      15 g/0.5 oz/1 tbsp butter or margarine 
      
      15 ml/1 tbsp olive oil 
      4 pork chops 
      Salt and freshly ground black pepper 
      
      100 g/4 oz/1 cup Gruyere (Swiss) cheese, grated 
      10 ml/2 tsp Dijon mustard 
      150 ml/0.25 pt single (light) cream 
      
      1 garlic clove, crushed 
      Crisp green salad, to serve 
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