Apple-maple-caramel-cream Pie

• 1 single pie crust
• 1 egg yolk
• 375 gr golden delicious apples peel
• 120 ml cream (heavy)
• 110 gr brown sugar packed (light)
• 110 gr maple syrup
• 18 gr butter (lightly salted)
• 16 gr cornstarch
• 14 gr sugar
• 4 gr vanilla