Vegan Key Lime Pie Recipe (2024)

FAQs

What makes key lime pie thicken? ›

Combining the lime juice with the egg yolks and condensed milk creates a chemical reaction that causes the mixture to thicken all on its own (the acid causes the proteins in the yolks and milk to bond together).

Unless you live in the Florida Keys, key limes are near impossible to find. Furthermore, they're so tiny that you'd need to juice at least twenty of them for this recipe. No thank you! Ordinary limes make an exceptional Key lime pie, and they are a much better alternative to bracingly tart bottled Key lime juice.

Persian limes are more acidic than Key limes and thus often have a more tart flavor. Key limes, which are known for being particularly aromatic, are typically sweeter in taste, making them a perfect ingredient for the refreshing pie they're most known for (or for these fun Key lime pie-inspired s'mores).

The biggest culprit of a runny key lime pie is not letting it chill for long enough. Since this is one of those summer pie recipes that's not baked, chilling the pie helps it set and prevents it from being runny. Be sure to chill it for at least 12 hours!

Very often flour or cornstarch is used, but in certain instances tapioca, arrowroot and potato starch can also help achieve the desired consistency. Tapioca starch is preferable for products that will be frozen because it will not break down when thawed. We like tapioca in blueberry, cherry or peach pies.

This can vary depending on the ripeness, size, and juiciness of your fruit, but as a general rule, you will need approximately 18-20 key limes for 1 cup of juice.

Nothing will bring forward the bright, citrusy, natural flavors and acidity like fresh squeezed limes. However, bottled lime juice is certainly a convenient option. If you decide to go this route, make sure to choose a high-quality brand that is 100% lime juice with no added sweeteners or flavors.

In the 1800's a ship salvager named William Curry, Florida's first self-made millionaire had a cook known as Aunt Sally. Historians believe that Aunt Sally did not create the pie but instead perfected the pie created by area fishermen. William Curry has a mansion in Key West that is still standing today.

Rather, the key to perfecting the Publix key lime pie is a simple ingredient added to the graham cracker crust. It's not the graham crackers themselves that make the crust special, but rather the unique addition of crushed toasted almonds.

A widely reported story claims that William Curry's cook Aunt Sally invented it in the late 19th century.

Can you use regular limes for Key lime pie? ›

Key lime pie ingredients

Ideally you'll want to use small key limes and juice them. Alternatively, use bottled key lime juice (yes, it exists for real!) or replace with regular limes up to ½ cup (120 ml) of juice. Condensed milk.

If your Key lime pie has been sitting out on the counter for over two hours (or for over an hour in 90 degrees F temperatures), throw it away to eliminate the possibility of foodborne illness, per guidance on food safety from the USDA.

People expected their authentic Key lime pies to be green, matching the bright green lime color of the Persian limes they saw in their grocery stores. Key lime pie filling, however, takes its yellow color from the egg yolks used in its production.

Alternatively, perhaps you can get genuine Key limes but find them too tart and bitter. That's also fine. Simply replace a couple of tablespoons with lemon juice instead.

Tapioca as Pie Filling Thickener

This old-school ingredient may be what your great grandmother used to thicken her pies, and it's still great for making a perfect fruit pie with a clear, stable filling. Tapioca is derived from cassava (also known as yuca or manioc), a starchy root native to South America.

When thickening a fruit pie filling, there are several options to consider. Very often flour or cornstarch is used, but in certain instances tapioca, arrowroot and potato starch can also help achieve the desired consistency.

Cornstarch has thickening power similar to Instant ClearJel. Like flour, it lends a cloudy, semi-transparent look to filling. It can also give filling a starchy taste. For full effectiveness, make sure the pie filling is bubbling up through the crust before removing your pie from the oven.

The best way to thicken runny apple pie filling before baking it is to add some cornstarch, tapioca starch, or flour to your mix. To fix a runny pie that's already been baked, simply let it cool to see if it will congeal naturally. If not, you can stick it back in the oven for a bit longer.