Make the crust: In a bowl, combine graham cracker crumbs, melted butter, sugar, and salt. Mix until the texture resembles damp sand and holds together when pressed.
Portion the crust: Spoon 2–3 tablespoons of the crumb mixture into each cup. Press firmly with the back of a spoon or a small glass to create an even base. Set aside.
Whip the cream: In a cold bowl, beat the heavy cream to stiff peaks. Don’t overbeat—stop when it’s thick and holds its shape. Set aside.
Blend the cream cheese: In a separate bowl, beat the softened cream cheese until very smooth, about 1–2 minutes. Add powdered sugar, vanilla, lemon juice, and salt. Beat again until light and fluffy.
Fold gently: Add one-third of the whipped cream to the cream cheese mixture and fold to lighten. Add the rest and fold until no streaks remain. Keep it airy to stay fluffy.
Fill the cups: Spoon or pipe the cheesecake filling over the crusts, dividing evenly between cups. Smooth the tops with a spoon or small offset spatula.
Chill: Cover and refrigerate for at least 2 hours, or up to 24 hours. This helps the texture set and the flavors meld.
Top and serve: Just before serving, add your favorite toppings. Keep it simple with berries, or go richer with caramel and chocolate.