Parisian Flan (French Custard Pie)

Ingredients

• Flan

  • 3 cups (750 ml) milk
  • 1 cup (250 ml) sugar
  • 1 vanilla bean, split and scraped
  • 6 tablespoons (90 ml) cornstarch
  • 1 cup (250 ml) 35% cream
  • 4 egg yolks
  • 1 egg

• Crust

  • 11/2 cups (375 ml) unbleached all-purpose flour
  • 1 tablespoon (15 ml) sugar
  • 1/4 teaspoon (1 ml) salt
  • 3/4 cup (180 ml) cold unsalted butter, diced
  • 1/4 cup (60 ml) milk
  • 1 egg yolk