1 can (397 g) sweetened condensed milk
1 tub (226 g) frozen whipped topping (such as Cool Whip®), thawed
125 ml lemon juice
160 ml kumquat puree
1 prepared 9-inch graham cracker crust
Step 1
In a large bowl, beat the sweetened condensed milk and whipped topping with an electric mixer until smooth and well combined.
Step 2
Add the lemon juice and continue beating until the mixture thickens. Stir in the kumquat puree until fully incorporated.
Step 3
Pour the mixture into the prepared graham cracker crust.
Step 4
Freeze the pie until firm, which usually takes 2 to 3 hours.
Step 5
Before serving, let the pie thaw for 5 to 10 minutes.