Prepare to fall in love with this sweet, tart, amazing vegan key lime pie! No coconut milk or oil, and the creamy filling is bursting with fresh lime juice and zest!
⅔cupaquafaba - the liquid from a can of unsalted chickpeas
¼cuppowdered sugar
1teaspoonlime or lemon juice
¼teaspoonvanilla extract - real or clear/imitation vanilla
Instructions
To make the condensed oat milk:
Combine the oats and water in a blender. Blend on high for 30 seconds in a high-speed blender or about 1 minutes in a standard blender. Strain with a nut milk bag (I like to use two bags, one inside the other, to catch all of the pulp).
In a large saucepan, whisk together the oat milk and sugar. Turn on the burner to medium heat and slowly bring the mixture to a simmer while whisking frequently. Once it's steamy and hot, cook for another 3 to 4 minutes or until glossy and thickened (see photos above). Whisk in the vanilla and salt, and set aside.
Prepare the pie filling:
Combine the cashews, silken tofu, lime juice, and half of the lime zest in a blender. Blend on high until completely smooth. Add all remaining ingredients (condensed milk - agar), and blend again until smooth.
Transfer the mixture to a medium-large saucepan. Over medium heat, slowly bring to a simmer, then cook for 5 minutes until thickened and creamy. This is important to activate the starch and agar agar.
Immediately pour the filling into the prepared pie crust and smooth the top. Refrigerate uncovered for 1 hour, then cover with plastic and refrigerate for at least 3 hours or until chilled and set.
To make aquafaba whipped topping:
In a medium saucepan, whisk together the aquafaba and sugar. Place over medium-low heat and cook just until you see steam rising off the surface and can tell it's hot. Don't let it reach a simmer.
Remove from heat and whisk in the vanilla. Pour the hot aquafaba into the bowl of a stand mixer fitted with the whisk. Add the lemon juice, and let the machine run for about 2 minutes on medium speed. Increase to medium-high speed and whisk for another 2 to 3 minutes. Increase to high speed, and whisk until shiny, white, with stiff peaks, about 4 more minutes.
Notes
Note 1 - I used my gluten-free vegan pie crust recipe and replaced half of the almond flour with ground pecans. To do it, simply place ¾ cup raw pecans in a high-speed blender or a food processor, and blend until the consistency of coarse crumbs.Other than that one swap, follow the pie crust instructions exactly. It's seriously the easiest pie crust you'll ever make, and so good! Prep in advance or the same day.Note 2 - Making condensed oat milk is easy, I promise! But if you don't want the extra step, you can substitute Nature's Charm condensed oat milk (contains coconut oil) or any brand of condensed coconut milk. In this case, you may want to reduce the sugar in the filling slightly because those products are sweeter than the homemade version.Store vegan key lime pie in the refrigerator for up to 5 days, or freeze for up to one month. Make ahead tip: the homemade nut-based crust holds up beautifully overnight, better than traditional pastry or graham crusts, which tend to get soggy.