Divide batter evenly between muffin tins, filling 3/4 full.
Use your mixer to beat the mixture together. Then add 1 cup powdered sugar (amount as original recipe is written // adjust if altering batch size), mix again, and place in fridge to set for 20-30 minutes. You’ll know it’s ready when you tip it and it’s slow to move.
Remove from fridge and beat again. If it’s still too thin, add another 1/4 - 1/2 cup powdered sugar (amount as original recipe is written // adjust if altering batch size) and beat until light and fluffy. I found that chilling for a total of 20 minutes and adding 1 3/4 cups total powdered sugar was perfect (amount as original recipe is written // adjust if altering batch size).
*I tried this recipe with both the Bob’s Red Mill Gluten-Free 1:1 Baking Blend and my go-to gluten-free blend and while both worked well, the Bob’s 1:1 blend yielded a narrowly superior cupcake.
*Adapted from / inspired by my Vegan Double Chocolate Beet Muffins.
*Frosting inspiration from Eats Well with Others
*Nutrition information is a rough estimate calculated with a generous amount of frosting per cupcake.