I always chill both the beer and ginger beer before starting. Cold is key.
If I’m using ice, I fill my glass about halfway with big cubes.
I pour in 6 ounces of cold lager beer.
Then, I slowly add 6 ounces of ginger beer—pouring gently keeps the bubbles around.
I’ll give it a quick, careful stir with a bar spoon if it needs it.
For garnish, I’ll pop a lime or lemon slice on the rim or just float it on top.
I serve it right away, while it’s still cold and fizzy. Warm ingredients just make it go flat faster, and who wants that?