Key Lime Bars

0 Preheat the Oven: Preheat the oven to 350°F. Line an 8x8-inch baking dish with parchment paper for easy removal. 
1 Make the Graham Cracker Crust: Crush the graham crackers into fine crumbs using a food processor or by placing them in a zip-lock bag and crushing them with a rolling pin. In a medium bowl, combine the graham cracker crumbs, melted butter, and sugar until evenly mixed. Press the mixture firmly into the bottom of the prepared baking dish. [wprm-ingredient text="1½ cups Graham Cracker Crumbs" uid="2"] [wprm-ingredient text="6 tbsp Butter" uid="3"] [wprm-ingredient text="⅓ cup Sugar" uid="4"] 
2 Bake the Crust: Bake the crust for 10 minutes. Remove from oven and allow to cool. 
3 Make the Lime Filling: In a large mixing bowl, beat the softened cream cheese until smooth.  Add the sweetened condensed milk, fresh lime juice, and lime zest. Mix until the filling is creamy and well combined with no lumps remaining.  Spread the filling evenly over the cooled crust. [wprm-ingredient text="4 oz Cream Cheese" uid="6"] [wprm-ingredient text="2 cans Sweetened Condensed Milk" uid="7"] [wprm-ingredient text="2 tbsp Lime Zest" uid="8"] [wprm-ingredient text="¾ cup Lime Juice" uid="9"] 
4 Chill the Bars: Chill in the refrigerator for at least four hours, or until the filling is fully set. 
5 Slice and Serve: Use the parchment paper overhang to lift the bars from the pan.  Slice into squares and serve chilled. Garnish with additional lime zest and whipped cream if desired.