apple crisp tart with butter nut creme sauce

Ingredients

• 4 cups apples, chopped and peeled
• 3/4 cup granulated sugar
• 1/2 cup brown sugar
• 3 tablespoons all purpose flour
• 1/4 cup pear juice (or apple juice)
• 1/2 teaspoon penzy's baking spice mix*
• 1 teaspoon pure vanilla extract
• 1 teaspoon fresh lemon juice, and 1/4 tsp peel
• 1 teaspoon cinnamon sugar mix
• 2 tablespoons butter, unsalted (cold and chopped)
• 1/2 tablespoon butter, melted
• 1/2 cup walnuts, coarsely chopped
• - sparkling white sugar for topping*
• 1 - egg, plus 1 tbs water for egg wash (optional)
• BUTTER NUT CREME SAUCE
• 1 cup sugar
• 2 cups milk
• - dash of salt
• 1/2 stick butter, unsalted
• 2 tablespoons all purpose flour
• 2 - egg yolks
• 1 teaspoon vanilla, butter and nut extract (specialty)*
• FLAKY CRUST
• 2 cups all purpose flour
• 3/4 cup solid shortening (1 cup for xtra flaky crust)
• 1/2 teaspoon salt
• 7 tablespoons cold water
• 1 teaspoon white vinegar