Vegan substituting in dessert is an interesting process. Obviously, substituting dairy has been easy. Need to substitute milk? No problem, there’s almond, soy, or coconut milk. Need to switch out butter? Easy, there are a lot of commercial non-dairy butters like Earth Balance. If you’ve read any of my other blogs, you’ve seen I have homemade substitutions for condensed milk and heavy cream.
However, when substituting eggs, that’s when you have to do some thinking. In baking and cooking, eggs have multiple properties: they bind, leaven, emulsify, soften, enrich, add fat, add color, and even flavor. There are so many great egg substitutes, but all of them usually have only one, maybe two of these properties. So when trying to make a vegan version of a non-vegan dessert, you have to look at what the eggs do in the recipe, and work from there. A good example of that is my key lime meringue tart.
In a traditional key lime pie, egg yolks are used as a thickener and an emulsifier, which gives it that creamy texture. A great substitute for the thickener is cornstarch and silken tofu makes a great emulsifier for this tart.
If you’ve followed my blogs, you’ve seen I love to use aquafaba (chickpea liquid) to make meringue. Below is my variation of my classic recipe.
Makes 1 double crust
Put flour, sugar and salt in the bowl of a food processor fitted with a metal blade and pulse to combine. Add the shortening and butter to the processor and pulse mixture until crumbly and butter is in small pieces throughout the flour. With the machine running slowly, add the entire ⅓ cup of cold water. Process until the dough just forms a ball.
Turn out dough onto a work surface and form into an oval. Cut the oval in half and press the cut side of each disc down to form a disc. Wrap in plastic wrap and refrigerate for at least 30 minutes.
1. Preheat oven to 375 degrees.
2. Sprinkle a work surface with flour. Using a rolling pin, roll your pie dough into a circle no thicker than ⅛ inch. Transfer to a tart shell, and remove the excess dough. Using a fork, poke holes in the bottom of the shell. Line a sheet of parchment on top and cover with pie weights. Bake the shell for 15-20 minutes, or until golden brown.
3. In a saucepan over medium heat, stir together cornstarch, non-dairy milk, silken tofu, lime zest, key lime juice, sugar, salt, and vanilla. Whisk constantly until slightly thickened, about 5 minutes. Place into the tart shell, and place in the fridge until set, about 60-90 minutes.
4. To make the meringue, place the chickpea liquid into a saucepan over medium heat. Reduce to 1 cup. Add in sugar and store until dissolved. Set aside to cool to room temperature.
5. Once cooled, pour into a stand mixer with the whisk attachment. Add cream of tartar, and whisk on high until stiff peaks form. Whisk in vanilla bean paste until combined. Spread the meringue over the custard. Using a torch, brûlée the top.
This tart is just one of the vegan recipes that make up the curriculum for The Chopping Block's brand new Vegan Boot Camp which I helped develop and which makes its debut on Sunday, June 24 at our Merchandise Mart location. You'll also learn how to make:
This is our most intensive and fun vegan cooking class we've ever offered to date, so I hope you can join me!