Melt the 6 tablespoons of butter in the microwave, using 30-second increments until fully melted.
In a mixing bowl, combine the graham cracker crumbs, melted butter, and granulated sugar. Stir until the mixture resembles wet sand.
Press the crust mixture firmly into the bottom of a springform pan, covering the bottom and slightly up the sides. Set the prepared crust aside.
In a large mixing bowl, beat the softened cream cheese until it’s smooth and creamy.
Add the sweetened condensed milk, fresh lemon juice, and vanilla extract to the cream cheese. Mix until all ingredients are well combined and the mixture is smooth.
Pour the cheesecake mixture into the prepared crust in the springform pan. Use a spatula to spread it out evenly.
Place the cheesecake in the freezer to chill for at least 8 hours, or overnight, until fully set.
Before serving, allow the cheesecake to thaw at room temperature for 15-20 minutes, depending on how long it was frozen.
If desired, top each slice with whipped cream, fresh berries, or your favorite cheesecake toppings.
Slice, serve, and enjoy your creamy, no-bake cheesecake!