• Preheat oven to 300°F.

Graham Cracker Crust

• In a small mixing bowl, combine cracker crumbs and sugar. Mix well.
• Melt butter on stovetop or in microwave. Add melted butter to crumbs mixture. Mix until evenly combined.
• Spray a 9-inch spring-form baking pan with nonstick spray.
• Pour 2 cups of crust mixture into pan. Firmly press crust around edges to form sides of crust.
• Add remaining crust in bottom of pan. Spread out evenly and press firmly to form the bottom.

Key Lime Filling

• In a medium mixing bowl, combine condensed milk, yolks and vanilla. Whisk to mix well.
• While whisking, slowly add lime juice.
• Pour filling mixture into crust, as needed.

Meringue Topping

• Place meringue ingredients into a kitchen mixer with beater attachments. Whip on high speed until firm peaks are formed, 3 - 5 minutes.
• Top pie with meringue and spread out over entire surface. Use a spoon to form peaks.
• Place pie in preheated oven. Bake pie 25 - 30 minutes. Watch carefully toward the end so you don't burn the meringue.
• Remove pie from oven. Set aside and let cool for 15 minutes at room temperature. Place in refrigerator until fully cooled.
• Serve well-chilled.