Macaron shells are notoriously finicky, so we highly recommend weighing your ingredients with a kitchen scale to be precise in your measurements. No matter how much care you take with measuring cups, weighing your ingredients will always be more accurate.
Macaron shells adapted from: Food Nouveau
French buttercream slightly adapted from: Preppy Kitchen
Find it online: https://recipes.fikabrodbox.com/yuzu-ginger-macarons/