Chill a champagne flute in the freezer for 5 minutes.
Pour 2 oz orange juice into the bottom of the glass.
Tilt the flute and pour in 4 oz chilled sparkling apple cider slowly down the side.
Stir once, gently.
Slide a thin orange wheel onto the rim.
Serve right away, while it is still fizzing.
Good to Know
This same ratio works with any juice on the bar, not just orange: swap in the grapefruit, pomegranate or cranberry juice above for a full non-alcoholic lineup.