This is Goldschläger and Champagne.

Goldschläger is a Swiss cinnamon schnapps with 43.5% alcohol by volume (ABV) and visible flakes of gold. The gold flakes are made from 24 carat gold that has been beaten into wafer-thin sheets by gold-leaf makers. A one-liter bottle contains around 13 milligrams (0.20 grains) of gold.

The gold flakes from Goldschläger and the bubbles from Champagne make quite a display!