01 - Preheat oven to 350°F (177°C). Line a standard 12-cup muffin tin with paper cupcake liners.
02 - Combine gluten-free graham cracker crumbs, light brown sugar, and melted butter in a bowl. Stir until the crumbs are evenly moistened. Add approximately 1 1/2 tablespoons of the mixture to each muffin liner and press firmly to create an even crust.
03 - Using an electric mixer on low-medium speed, beat room-temperature cream cheese for 1 to 2 minutes until fluffy. Add sour cream, eggs, granulated sugar, vanilla extract, and lemon juice. Mix until batter is smooth and ingredients are fully incorporated.
04 - Using a greased cookie scoop or spoon, evenly distribute the cheesecake filling among the muffin liners, filling each to the top. Bake for 20 minutes, or until the tops are just beginning to brown. The cheesecakes will be slightly puffed, but will settle as they cool.
05 - Remove from oven and let cheesecakes cool in the pan until completely cool. Cover and refrigerate for at least 3 hours or overnight until fully chilled.
06 - Allow cheesecakes to rest at room temperature for 2-3 minutes before removing from the muffin tin. Serve plain or with preferred toppings.