graham cracker crumbs, sugar, and melted butter. Stir until the mixture resembles wet sand.
Press about 2 tablespoons of the crust mixture into the bottom of each small jar or cup. Set aside.
In another bowl, whisk together the sweetened condensed milk, sour cream, lime juice, lime zest, and food coloring (if using) until smooth and creamy.
Spoon the lime filling evenly over the crust in each jar, smoothing the tops.
Chill in the refrigerator for at least 2 hours to set.
Just before serving, beat the heavy cream, powdered
