Southern Living's Key Lime-Buttermilk Icebox Pie

via Southern Living

I love icebox pies in the summer! I found a stack of enticing recipes at Southern Living and I plan on making every single one by summer's end. They're my new obsession! The first recipe I tackled was for Key Lime-Buttermilk Icebox Pie. I swapped out the Buttery Cracker Crust for a gluten-free graham cracker crust and used Manhattan Key Lime Juice since it's impossible to find key limes in New York City. The results were spot-on, the tart deliciousness of key lime pie and the creaminess of frozen ice cream! 

Key Lime-Buttermilk Icebox Pie
1 (14-oz.) can sweetened condensed milk
1 Tbsp loosely packed lemon zest
1/2 cup Key lime juice
3 large egg yolks
1/4 cup buttermilk
Buttery Cracker Crust, baked *
Vegetable cooking spray
Sweetened Whipped Cream

1. Preheat oven to 325º F. Whisk together the first 3 ingredients in a bowl.
2. Beat egg yolks with a handheld mixer in a medium bowl at high speed 4 to 5 minutes or until yolks become pale and ribbons form on the surface of mixture when beater is lifted. Gradually whisk in sweetened condensed milk mixture, and whisk until thoroughly combined; whisk in buttermilk. Pour mixture into prepared crust.
3. Bake at 325º for 20 to 25 minutes or until set around edges. (Pie will be slightly jiggly.) Cool on wire rack 1 hour. Cover pie with lightly greased (with cooking spray) plastic wrap, and freeze 4 5o 6 hours. 
4. Top with Sweetened Whipped Cream.

*the crust recipe calls for 6 Tbsp of melted butter but I would reduce to 5 Tbsp, otherwise the mixture is too wet.