American · Dessert

Key Lime Pie

A tangy and refreshing Florida classic featuring creamy key lime filling in a buttery biscuit crust. This zesty dessert requires chilling time but delivers bright citrus flavors perfect for warm weather.

Key Lime Pie
Time 240 min
Serves 8
Cuisine American
Print Recipe
The Method

Instructions

First things first, let's get your oven warmed up to the right temperature. Set it to 160 degrees Celsius , or if you're using a fan oven, go for 140 degrees Celsius . For those with a gas oven, that's setting number 3 . This gentle heat will help our pie crust bake perfectly without burning.

Now, onto the biscuits! Take your digestive biscuits and pop them into a food processor. Give them a quick blitz until you have fine crumbs. If you don't have a processor, no worries at all , just toss the biscuits into a strong plastic bag and bash them with a rolling pin until they're nicely crushed. It's actually kind of fun, like a mini stress reliever! Once your crumbs are ready, mix them thoroughly with the melted butter. This combination will help your crust hold together beautifully.

Next, you'll want to press this buttery biscuit mix firmly into the base and up the sides of a 22cm loose based tart tin . Use the back of a spoon or the bottom of a glass to really pack it down evenly. This step is key to getting a sturdy crust that won't crumble when you slice the pie. Once it looks perfect, pop the tin into the oven and bake for about 10 minutes . You'll know it's done when the crust feels firm and looks slightly golden. Take it out and let it cool completely , this helps it set up so it stays crisp under your luscious filling.

While the crust is cooling, let's work on that amazing filling. Grab a large mixing bowl and add your egg yolks . Use electric beaters to whisk them for about a minute until they become smooth and slightly pale. This adds air to the yolks, making the filling nice and creamy. Then, pour in the sweetened condensed milk and continue whisking for another 3 minutes . The mixture should become smooth and a little thicker, which is just perfect.

Now, zest and juice your limes , this is where all that fresh, tangy flavor comes in. Add both the zest and juice to your mixture and whisk again for another 3 minutes , ensuring everything is fully combined and silky smooth. The citrus aroma will start to fill your kitchen, and trust me, it's heaven!

Carefully pour the zesty filling into your cooled biscuit base, smoothing the top with a spatula if you like. Pop it back into the oven for about 15 minutes . The filling should be just set around the edges but still have a tiny wobble in the center , that's how you know it'll have the perfect creamy texture once chilled. Once baked, remove the pie and let it cool completely at room temperature. Then, for best results, chill it in the fridge for at least 3 hours , though overnight chilling will only make it better and allow those flavors to meld beautifully.

When you're ready to serve and impress, gently remove the pie from the tin and slide it onto a pretty serving plate. To finish things off, whip the double cream with the icing sugar until it forms soft peaks. You want it light and airy, not too stiff. You can either dollop the cream generously on top or get fancy and pipe it in pretty swirls. For that final zing, sprinkle over some extra lime zest , it adds a fresh, colorful touch and a burst of citrus scent that will make everyone's mouth water.
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