Take equal parts Instant coffee, sugar, and water and combine (this can be adjusted depending on preference, I usually do two tsp coffee, one tsp sugar, and just enough water to cover the mixture)
Use a handheld frother or electric mixer and start mixing the combination
Mix for about 4 minutes until the color and consistency of the mixture changes
Once the color of your mixture changes from dark brown to a light peanut butter color - whip until it forms a foamy consistency and peaks on your whisk