This rather complicated drink nonetheless is amazingly tasty. Would be great as a "foam" on top of a G&T.

2 ounces gin
1/2 ounce fresh lemon juice
1/2 ounce fresh lime juice
1/2 ounce simple syrup
1 egg white
1 ounce heavy cream
1 dash orange bitters or 1/2 teaspoon orange flower water (A. Monteux in a little blue bottle comes recommended)
about 2 ounces of seltzer (optional)

Put your serving glass and the bottle of your whipped cream maker in the freezer to chill.

Place all ingredients into a cocktail shaker with ice and shake for 30 seconds. Strain the liquids into your whipped cream maker and charge.

Shake the whipped cream maker about five to ten times.

Optionally, add a little seltzer to the glass, then dispense (through the nozzle) into your glass.

Serve in a wide-mouthed highball with a spoon!

Via http://www.notmartha.org/archives/2012/07/26/ramos-gin-fizz-a-ne...