Begin by
making caramel sauce. Heat sugar and water in a saucepan over low
heat until sugar is completely dissolved, stirring gently. When the
sugar is dissolved, bring the heat to medium. Do not stir after this
point! Let sugar mixture boil until a dark amber in color, gently
shaking the pan every few minutes. Take off heat and add heavy cream
and butter. If caramel solidifies put it back over low heat and stir
until creamy. Add vanilla and sea salt.
Preheat oven
to 350 degrees. In a large bowl mix graham cracker crumbs, sugar,
cinnamon, and melted butter. Press into a springform pan. Bake for
10 minutes.
In a mixing
bowl combine cream cheese and sugar. Beat until well blended. Add
eggs, beating after each one. Add vanilla. Pour filling into crust.
Pour about half of the caramel over the filling and use a knife to
gently swirl it into the batter.
Mix cinnamon
and sugar. Slice apples and coat in cinnamon sugar mixture. Cover
cheesecake with apple slices. Sprinkle on any remaining cinnamon
sugar.
Bake in
preheated oven for 60 minutes. Turn oven off, open the door, and let
cheesecake stay in the oven for one additional hour. Pour remaining
caramel over cheesecake and refrigerate.