Name for a famous French artillery piece, this gentle cocktail is perfect

for a beautiful Spring day. Feel free to substitute cognac for the gin.

From the Death & Co. book
1 1/2 oz. gin (or cognac)
3/4 oz. fresh lemon juice
1/2 oz. simple syrup
Champagne
Shake everything except the Champagne with ice.
Pour into a flute. Top with Champagne.
Garnish with a lemon twist.

See photo

Death & Co. book