Can you taste the mayonnaise in this frosting?
No. The mayo blends completely with the powdered sugar and extracts to create a vanilla-forward frosting with no discernible mayo flavor.
What consistency should the frosting have?
Add milk 1 tablespoon at a time until you reach a spreadable consistency—thicker for piping, thinner for spreading on cookies.
How far in advance can you make this frosting?
Store in an airtight container in the refrigerator for up to 3 days. Let it come to room temperature and stir before using.
Can you color this frosting?
Yes. Add gel or liquid food coloring sparingly while mixing—a few drops go a long way with this recipe.
Is this frosting suitable for hot weather?
Yes, it's more stable than traditional buttercream since it doesn't contain butter, but still refrigerate if your kitchen is very warm.