Step 1: Prepare the Crust
Preheat oven to 325°F (163°C).
Combine graham cracker crumbs, brown sugar, and melted butter in a bowl.
Mix until the crumbs resemble wet sand.
Press firmly into the bottom of a 9-inch springform pan.
Bake for 8–10 minutes.
Remove and allow to cool completely.
Step 2: Make the Callaloo Puree
Add the callaloo and water to a skillet.
Cook for 3–5 minutes until wilted.
Allow to cool slightly.
Blend until completely smooth.
Measure out ½ cup puree and set aside.
Step 3: Prepare the Cheesecake Filling
In a large mixing bowl, beat the cream cheese until smooth.
Add the sugar and continue mixing until creamy.
Mix in the eggs one at a time.
Add the vanilla, sour cream, cornstarch, and salt.
Fold in the callaloo puree.
Mix until the batter is smooth and evenly colored.
Step 4: Bake the Cheesecake
Pour the filling onto the cooled crust.
Wrap the outside of the springform pan with foil.
Place the pan inside a larger roasting pan.
Fill the roasting pan with hot water until it reaches halfway up the sides of the cheesecake pan.
Bake for 60–70 minutes or until the edges are set and the center still jiggles slightly.
Step 5: Cool Slowly
Turn off the oven.
Crack the oven door open slightly.
Let the cheesecake sit inside for 1 hour.
Remove and cool completely at room temperature.
Step 6: Chill
Refrigerate for at least 6 hours, preferably overnight.
Remove from the springform pan.
Slice and serve.