Tomato Quiche - James Martin Chef

Ingredients

• 400g Plain flour
• 200g butter
• 1 egg
• Water if needed
• 200ml double cream
• 200ml milk
• 5 eggs
• 3 egg yolks
• Salt and pepper
• 1 onion sliced, cooked in a knob of butter until caramelised
• 5 tomatoes 1/2d and baked at 120 for 1 hour
• 300g grated cheddar
• Few sprigs of thyme
• Mixed green salad leaves
• 50ml veg oil
• 15ml white wine vinegar
• 1 tbs Dijon mustard