Combine all ingredients in a shaker except cream and soda water and dry shake.
Add cream with 1 large ice cube and 1 small ice cube. Shake until ice is dissolved.
Pour the drink into a Collins glass and set in the freezer until the meringue has separated from the liquid beneath, about 5 minutes.
Place a barspoon into the middle of the drink and carefully pour soda water along the spoon until the meringue has risen above the rim of the glass.
Express a lemon twist over the drink and discard.
Blended option (for 2 min) :
Multiply the ingredients by the number of serving.
Combine all ingredients except soda water in a blender and blend a medium speed for 1 minutes.
Add ½ crushed ice by serving and blend again at medium speed for 2-3 minutes.
Pour the drink into Collins glasses and set in the fridge until the meringue has separated from the liquid beneath, about 5 minutes.
Place a barspoon into the middle of the drink and carefully pour soda water along the spoon until the meringue has risen above the rim of the glass