Ingredients

• butter olive oil crust
• 2 cups all purpose flour
  
• ¹/₂ teaspoon salt
  
• 3 tablespoons sugar (white or brown)
  
• ¹/₃ cup super cold unsalted butter
  
• ¹/₃ cup olive oil
  
• 1 large egg white
  
• 2 tablespoons cold water
  
• 1 tablespoon water+1 egg yolk for brushing
  
• sprinkle of sugar (optional)
  

• mascarpone custard filling
• 2 large egg yolks
  
• 1 cup mascarpone cheese
  
• ¹/₂ cup white sugar
  
• ¹/₂ teaspoon vanilla extract
  
• 3 medium apples, peeled and sliced
  
• 1 tablespoon ground cinnamon