制作步骤

• 1 - 预热烤箱:
  将烤箱预热至180°C（350°F）。
• 2 - Cook the Bacon and Onion:
  In a skillet, cook the diced bacon over medium heat until crispy. Add the chopped onion and sauté until soft.
• 3 - Prepare the Custard:
  In a bowl, whisk together the eggs, heavy cream, salt, pepper, and nutmeg until well combined.
• 4 - Assemble the Quiche:
  Place the pie crust in a tart pan. Spread the bacon and onion mixture evenly over the crust, then pour the custard mixture on top. Sprinkle the grated Gruyère cheese.
• 5 - Bake the Quiche:
  Bake in the preheated oven for 30-35 minutes, or until the custard is set and the top is golden brown.
• 6 - Cool and Serve:
  Allow the quiche to cool for a few minutes before slicing. Serve warm or at room temperature.