Ingredients

  • 50 g butter
  • 1 tablespoon olive oil
  • 4 large yellow onions, sliced
  • 1 garlic clove, crushed
  • 2 eggs
  • 2 egg yolks
  • 50 g coarse grain mustard
  • 142 ml double cream (US, heavy cream)
  • 2 tablespoons of fresh mint, chopped
  • 1 pie crust

Method

  • Melt the butter with the oil in a large frying pan over medium-low heat. Add the onions and garlic. Season to taste with salt & pepper and cook for 30 minutes, stirring often, until golden. Take off heat and set aside.
  • Preheat the oven to 200°C Line a pie pan or loose bottomed tart tin with the pastry/pie crust. Line with greaseproof paper (wax paper) and fill with beans and bake for 15 minutes. Remove the paper and beans and cook for another 10 minutes until golden.
  • Lower the oven temperature to 180°C In a bowl, whisk together the eggs, yolks, mustard and cream. Stir in the onions and the chopped mint.
  • Spoon the mixture into the pie/pastry crust and bake for 20 minutes or until just set. Cool slightly before serving.