Key Lime Slab Pie

Servings: servings

Calories: 333cal

Preheat oven to 350 F. Spray baking pan with non-stick cooking spray.
Combine crust ingredients in a bowl and mix well.
3 1/2 cups graham cracker crumbs, 1/2 cup granulated sugar, 1 cup unsalted butter
Press crust mixture evenly into the bottom and up the sides of the 10x15 baking pan.
Bake the crust for 10 minutes in a preheated oven. Cool on a wire rack.

In a large bowl, whisk together sweetened condensed milk, lime juice, and egg yolks until the mixture thickens.
28 ounces sweetened condensed milk, 1 cup lime juice, 8 large egg yolks
Pour filling into the cooled crust and spread evenly with a rubber spatula.
Bake until set, about 10 minutes. The center will jiggle slightly when the pan is nudged.
Cool completely on a wire rack.
Refrigerate until cold, at least 4 hours or up to 24 hours.

With mixer at low speed, combine heavy whipping cream and powdered sugar until sugar is no longer visible.
2 cups heavy whipping cream, 2 Tablespoons powdered sugar
Increase speed to medium until mixture begins to thicken, then increase speed to high. Whip until firm soft peaks form.
Spread whipped cream on top of the chilled pie.
Garnish with lime zest and lime slices if desired.

5 from 1 vote

Separating eggs is easiest when the eggs are cold. I have found that it's best to use 3 bowls: 1 for separating the egg over, 1 for the yolks, and 1 for the whites. We suggest this in case a yolk breaks, it doesn't contaminate the already separated whites, especially if you plan to use the whites for something like meringue or our angel food cake.
To make a genuine key lime pie, you will need the juice from key limes. Key limes are small and you will need about 30 of them, which is approximately 2 pounds. Because of their size they are a pain to juice and not truly necessary. Instead, you can use regular limes, and if you're really in a pinch, bottled lime juice. We do recommend juicing limes yourself as it simply tastes better than the bottled stuff!
You can use prepackaged graham cracker crumbs for this crust. If you grind up the crackers yourself, you will need about 3.5 sleeves, which is roughly 30-32 crackers. Keep in mind that not all brands are created equal and might not contain the same number of crackers! It’s best to measure and even weigh the crumbs.

Course: Dessert

Cuisine: American

Prep Time10

Cook Time20

Chill Time4

Total Time4 30