Croque Monsieur - cooking recipe

Ingredients

2 tbsp wholegrain mustard
4 slices white bread
4 slices ham
2.5 oz Gruyere cheese, grated
3 tbsp unsalted butter

Preparation

Spread mustard over bread. Top 2 slices with ham and cheese. Top with remaining bread.
In a large frying pan, melt butter over medium heat. Cook sandwiches for 2-3 mins per side, or until golden brown and cheese is melted. Serve immediately.