Step 1: Prepare the Crust
- Preheat your oven to 350°F (175°C). For easy cleanup and removal, line a 13 x 9-inch baking pan with foil, then coat the foil with nonstick spray.
- In a medium bowl, combine graham cracker crumbs, sugar, and ground cinnamon. Mix until evenly distributed.
- Pour in the melted butter and stir until the crumbs are fully coated and the mixture resembles wet sand.
- Press the mixture firmly and evenly into the bottom of the prepared pan, creating a solid, uniform crust. Use the bottom of a glass or measuring cup for best results.
- Bake the crust for 10 minutes, or until lightly golden. Set aside to cool completely.
Step 2: Make the Cheesecake Filling
- Using a food processor or electric mixer, blend the cream cheese and sugar until smooth and creamy, scraping down the sides of the bowl as needed.
- Add the dulce de leche and mix until fully incorporated, ensuring the mixture is smooth and uniform.
- Beat in the eggs one at a time, mixing just until combined after each addition to avoid overmixing.
- Add the vanilla extract and give the mixture one final stir.
Step 3: Bake the Cheesecake
- Pour the cheesecake filling over the cooled crust, spreading it evenly with a spatula.
- Bake for 38 minutes, or until the filling is set and the edges are puffed and slightly cracked. The center should still have a slight jiggle when gently shaken.
- Remove from the oven and allow the cheesecake to cool completely in the pan on a wire rack.
Step 4: Prepare the Topping
- In a microwave-safe bowl, combine the dulce de leche with 3 tablespoons of heavy cream. Heat in 10-second intervals, stirring after each, until the mixture is smooth and pourable.
- Adjust the consistency by adding more cream, one teaspoon at a time, if needed.
Step 5: Assemble the Bars
- Pour the dulce de leche topping over the cooled cheesecake, spreading it into an even layer with a spatula or offset knife.
- Refrigerate the cheesecake for at least 1 hour, allowing the topping to set.
- Once chilled, remove the cheesecake from the pan using the foil liner. Use a sharp knife to cut the cheesecake into 24 bars, wiping the blade clean between cuts for neat edges.
Step 6: Add the Finishing Touch
- Just before serving, sprinkle each bar with a pinch of fleur de sel.