Scotch Salted Caramel Sour

Use these specified component styles: Bob's Tonka Bitters (optional).

Chill an Old Fashioned glass in advance to ensure optimal serving temperature.

Prepare a lemon zest twist to use as a garnish later.

Combine the blended Scotch whisky, freshly squeezed lemon juice, salted caramel syrup, and your choice of egg white, Vegg White vegan alternative, or Fee Brothers Fee Foam cocktail foamer in a shaker with ice. Add Bob's Tonka Bitters if desired.

Shake the mixture vigorously, then strain it back into the shaker, discarding the ice.

Dry shake the ingredients once more to achieve a smooth, emulsified texture.

Fine strain the cocktail into the chilled Old Fashioned glass filled with fresh ice.

Express the lemon zest twist over the surface of the cocktail to release its essential oils, then place it atop the drink as a garnish.