01 -
Combine instant coffee with steaming hot water in a small cup, whisking thoroughly until completely dissolved. Set aside to cool down entirely - you can place it in the refrigerator to speed this up.
02 -
Add softened butter to a large mixing bowl and beat with an electric mixer until it becomes light, fluffy, and perfectly smooth.
03 -
Keep the mixer on low speed and slowly incorporate the powdered sugar until fully blended. Mix in the vanilla extract and salt until evenly distributed.
04 -
Slowly pour the completely cooled coffee mixture into the frosting while continuously mixing. Beat until everything is well combined and scrape down the bowl sides to ensure no ingredients are left behind.
05 -
Your frosting is ready to spread generously on cakes or pipe beautifully onto cupcakes as desired.