
Brut Champagne is a dry sparkling wine from the Champagne region of France, made fizzy by a second fermentation in the bottle.
Any dry sparkling wine does the job one for one, and the variable to watch is sugar: labels run from bone dry to noticeably sweet under names that do not say so plainly. Taste the bottle before you build, and correct with syrup half a barspoon at a time if it comes out drier than the drink wants.
Tank-method, not bottle-fermented, and the sweetness scales do not line up — "extra dry" sits sweeter than "brut". Pour it into a recipe balanced for brut and the drink comes out sweeter than intended.
Sparkling wine (generic)
Only Champagne may carry the name, and everything else — including traditional-method wines — is sold under another. In a drink the difference is usually depth rather than sweetness, so the balance holds and the finish shortens.
Once opened it goes flat quickly, so use it soon after popping the cork.