Combine graham cracker crumbs, melted butter, and granulated sugar in a bowl, stirring until the mixture feels like wet sand between your fingers. Press this firmly into the bottom of a cupcake liner-filled muffin tin, using the bottom of a shot glass to create an even layer. I learned this trick after pressing by hand resulted in uneven thickness—the glass gives you consistent pressure and depth.

Bake the crust alone at 350°F for 8 minutes until it smells toasty and starts to set. This matters because a pre-baked crust prevents the filling from soaking into it during the bake cycle, keeping it crisp even after freezing. Let it cool completely while you prepare the filling.

Beat softened cream cheese with granulated sugar until no lumps remain—this takes longer than you think, usually 2-3 minutes of steady mixing. Scrape the sides of the bowl at least twice because cream cheese hides in corners. Once smooth, add eggs one at a time, beating for 30 seconds between additions so they incorporate without creating air bubbles that trap later.

Whisk fresh lemon juice, lemon zest, vanilla extract, and sour cream in a separate bowl, then fold this mixture gently into the cream cheese filling using a rubber spatula. Fold means turning the mixture over itself rather than stirring, which preserves the light texture you need for frozen lemon cheesecake bites cozy that don't turn into dense pucks.

In a clean bowl, whip heavy cream with powdered sugar until soft peaks form—the cream should hold its shape but still look wet, not stiff like meringue. Fold this whipped cream into the lemon filling in two additions, using the same gentle folding motion. This is the secret that keeps these bites from freezing solid as ice blocks.

Divide the filling equally among the prepared cupcake liners, filling each about three-quarters full so they freeze without spilling. Place the entire muffin tin on a level shelf in your freezer for at least 4 hours, though overnight is better because you want the filling completely solid before removing them from the liners.

Run warm water over the back of each cupcake liner to release the frozen bite, then transfer to a freezer bag for long-term storage. I keep mine in a bag labeled with the date because these stay perfect for up to three weeks, and I always forget otherwise.