Step 1: Make crust
Preheat oven to 325 degrees. Line a 9x13 baking dish with parchment paper and grease well. In a medium bowl, combine crushed graham crackers, sugar, and Mayan Sea Salt. Add melted butter and mix until mixture is consistency of wet sand. Use the bottom of a measuring cup to press graham cracker mixture into bottom of prepared baking dish. Bake for 15 min. until set.
Step 2: Make filling
In the bowl of a stand mixer fitted with the paddle attachment, cream together cream cheese and sugar until smooth and creamy. Add sour cream and Tahitian Vanilla Extract and mix until just combined. Add eggs one at a time and mix until just combined. Remove half of mixture to a medium bowl. To the remaining mixture, add pumpkin puree and Pumpkin Pie Spice and mix until combined.
Step 3: Layer and bake
Pour plain cheesecake mixture evenly over par-baked crust. Drop spoonfuls of pumpkin cheesecake mixture over top. Use an offset spatula to spread pumpkin cheesecake mixture over top of plain cheesecake mixture. Use a chopstick or toothpick to swirl cheesecake mixtures together. Bake for 45 min., turning baking dish halfway through to ensure even baking. Edges of cheesecake should be set with a slight wobble in the center when baking dish is moved. Set dish on a wire rack to cool, then refrigerate to chill. Serve cold.