- Ginger ale, as needed
- 30g butter
- 2 tsp sugar
- Cinnamon, to taste
- 2 egg whites
- Cocoa powder, as needed
- Pour ginger ale into a clear beer mug.
- In a bowl, whisk together room temperature butter, sugar and cinnamon. Mix in egg whites in 2 additions.
- Pour the mixture onto the ginger ale.
- Make a paper stencil of your chosen design and place on top of the butterbeer. Sprinkle with cocoa powder and enjoy!