• 

  Gruyère cheese (không bắt buộc) cut in pieces

  50 g

Pastry

• 

  butter, unsalted chilled, cut in pieces, plus extra for greasing

  75 g
• 

  flour plus extra for dusting

  150 g
• 

  salt

  ½ tsp
• 

  water

  50 g

Filling

• 

  bacon cubes

  200 g
• 

  eggs

  4
• 

  milk

  50 g
• 

  crème fraîche

  100 g
  100 g cream
• 

  salt

  ¼ tsp
• 

  ground black pepper

  2 pinches