Monte Sour

Use 2:1 rich simple syrup for its listed portion.

Select and pre-chill an Old Fashioned glass.

Prepare a garnish by twisting a strip of lemon zest.

Combine Amaro Montenegro, freshly squeezed lemon juice, rich sugar syrup, and either egg white or Fee Brothers Fee Foam in a shaker with ice.

Shake vigorously to chill and blend the ingredients.

Strain the mixture back into the shaker, discarding the ice.

Dry shake the cocktail to create a frothy texture.

Fine strain the mixture into the pre-chilled Old Fashioned glass filled with fresh ice.

Express the lemon zest twist over the cocktail to release its oils, then garnish the drink with the twist.