01 -
In a medium bowl, beat the softened cream cheese and butter until smooth and creamy, about 1 minute.
02 -
Beat in the key lime juice, lime zest, vanilla, and salt until evenly mixed.
03 -
Add powdered sugar 1/2 cup at a time, beating after each addition, until the mixture becomes a soft dough that is no longer sticky. Use 3 1/2 to 4 cups as needed.
04 -
Line a baking sheet with parchment. Scoop small portions and roll into 3/4-inch balls, making about 36 mints.
05 -
Press each ball gently with a fork to flatten slightly. Sprinkle or roll the edges in fine graham cracker crumbs and add a little extra lime zest if desired.
06 -
Refrigerate the mints for at least 1 hour before serving. Store covered in the refrigerator.