Aquafaba Swiss Buttercream Recipe - Gretchen's Vegan Bakery (2024)

FAQs

What if I put too much liquid in my Swiss meringue buttercream? ›

To fix this, place the buttercream in the refrigerator for 15-20 minutes to firm up the butter, then whip it again with a stand mixer or hand mixer until it thickens to the desired consistency. If it is still soupy, stick it back in the fridge for longer to cool down.

Make sure to open your aquafaba jar in a dry space, and keep it out of humidity to prevent clumping and hardening of the powder. Additionally, adding cream of tartar to your aquafaba can be beneficial as it helps to reduce the breakdown of texture when whipping the aquafaba, allowing it to stabilize.

Swiss Meringue Buttercream Success Secrets: Separate your egg whites from the yolks and make sure there are no yolks in the whites. Since SMBC is meringue based, yolks (a fat) can quickly stop a meringue from not forming its stiff glossy peaks as required.

It's essential to sieve your icing sugar (aka confectioners sugar) before adding to the softened butter, so do this first. Then you're going to add little by little to the vegan buttercream frosting, beating between additions. This again stops the buttercream from splitting or becoming grainy.

Why is my Swiss Meringue Buttercream Soupy? This is usually due to the mixture being too warm or adding the butter before the meringue has fully cooled down. Thankfully, it is easy to fix. Refrigerate the bowl for 15-20 minutes then continue mixing until the frosting thickens.

If yours tastes like you're eating a stick of butter, perhaps your meringue wasn't whipped to stiff peaks before adding butter, or the butter was too cold, in which case it just needs some more whipping. Or you added too much butter.

In a KitchenAid mixer, it usually takes about 20-25 minutes to make a good, stiff meringue from start to finish. If you're at the 20-minute mark and the meringue still isn't at stiff peaks, check your temperature. Is it hot and humid in your kitchen? Then a 15-20 minute meringue timeout in the fridge will help!

Saponins, the part of aquafaba that is responsible for the egg white-like texture and foaming, are a toxic steroid derivatives that disrupt red blood cells. They may even contribute to development of leaky gut by damaging the gut wall.

Aquafaba will freeze well for about 3 months. You will need to defrost the Aquafaba overnight in the refrigerator before using. Always smell your Aquafaba before using it. It will smell like spoiled beans (not pleasant) if it is no longer good.

Can I add powdered sugar to my Swiss meringue buttercream? ›

Powdered sugar: Classic Swiss Meringue Buttercream calls for granulated sugar. Since we are eliminating the cooking in this recipe, we need to use sugar the will easily dissolve. Powdered sugar is perfect for this! Salt: Salt enhances the flavor of the buttercream.

*Pro tip: If you love the texture and taste of Swiss meringue buttercream but want it a bit sweeter, add ½ -¾ cup of sifted confectioners sugar after the butter is fully mixed in.

I recommend Miyoko's vegan butter for the best all around vegan butter. for a nut-free vegan butter option. Other great options include Flora Plant Butter, and Earth Balance. More on which butter brand to use below!

Coconut Cream: Whip a few tablespoons with softened, refined coconut oil in a stand mixer or with an electric beater to emulsify the mixture. This is an especially great substitute when making frosting. Nut Butters: Mix with coconut sugar for quick cookie dough.

Coconut oil is a delicious vegan alternative to butter as it behaves similarly to butter compared to other oils. It solidifies when cool and melts at room temperature, making it very versatile. If you use unrefined coconut oil, you can expect a more distinctive taste, but refined coconut oil is basically flavourless.