01 - In a large mixing bowl, use an electric mixer to beat the softened cream cheese until smooth and creamy.
02 - Add sweetened condensed milk, lime juice, lime zest, and powdered sugar. Continue beating until mixture is fully combined and smooth.
03 - In a separate bowl, whip the cold heavy cream until stiff peaks form.
04 - Gently fold the whipped cream into the lime mixture using a rubber spatula until light and fluffy.
05 - Transfer the mixture to a serving bowl and refrigerate for at least 30 minutes to enhance the flavors.
06 - Just before serving, sprinkle with additional lime zest and graham cracker crumbs if desired. Serve chilled with graham crackers, vanilla wafers, and fresh fruit for dipping.