Add the gin, applejack, lemon, grenadine, and egg white to an empty shaker and do a vigorous dry shake for 30 seconds to combine all the ingredients and froth the egg white fully.
Add ice to the shaker and shake again until cocktail is fully chilled.
Pour into a coupe glass and enjoy.
Notes
Tips for Making
Try using a brandied cherry for a garnish.
Add your drink to a chilled glass to keep it cool a little longer.
If making more than one drink at a time, you can use one egg white per every two cocktails. The foam from one egg white is generous on one cocktail so it makes enough foam to cover two if making a batch.