Preheat oven to 350 degrees

For the crust:
Crush crackers in a food processor or Ziploc bag. Pour them into a bowl and stir in sugar and melted butter. Press into a pie pan and bake for 5 minutes or until golden and set. Remove from oven and set aside to cool slightly.

For the filling:
Mix lime zest, lime juice, and egg yolks in a mixing bowl. Add in condensed milk and mix on high until smooth and thick. Pour mixture into crust and bake for 15 minutes.

Remove from oven, allow to cool, then refrigerate for at least 1 hour—more if possible.

Serve with sweetened whipped cream and more grated lime zest.