Key Lime Pie – Love This Cookbook

Ingredients

• 4 tablespoons unsalted butter, melted, plus 1 tablespoon a room temperature for greasing the plate
• 1 1/2 cups finely ground graham cracker crumbs ((from about 10 graham crackers) )
• 1/4 cup sugar
• 6 light grates of lemon zest
• 2 cups sweetened condensed milk ((use any left over to make caramel; see headnote))
• 1/2 cup sour cream
• 2 tablespoons grated lime zest (from about 2 limes)
• 3/4 cup fresh lime juice (from 8-10 limes)
• 1 cup heavy cream
• 2 tablespoons sugar