Cheese, Tomato and Caramelised Onion Quiche | The Dizzy Dieter

Ingredients

• 175 g plain flour, plus extra for dusting
• 75 g butter, plus extra for greasing
• 15g butter
• 1 tablespoon olive oil
• 1 tablespoon caster sugar
• 1 teaspoon paprika
• 2 red onions, sliced
• 1 tablespoon balsamic vinegar
• A sprig of thyme, leaves stripped (or 1 teaspoon of dried thyme)
• Salt and pepper
• 250 g cheddar, grated
• 4 tomatoes, sliced
• 5 eggs, lightly beaten
• 100 ml milk
• 200 ml double cream
• Black pepper