Jeffrey Morganthaler claims this is the Perfect Amaretto Sour: 1.50 ounces Amaretto 0.75 ounce cask-proof bourbon 1.00 ounce lemon juice 0.50 ounce egg white, beaten 1 tsp of 2:1 simple syrup Dry shake ingredients to combine, then shake well with … Continue reading Perfect Amaretto Sour