Garden Sour

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

Select and pre-chill a highball glass to ensure optimal serving temperature.

Prepare a rhubarb ribbon as a garnish, setting it aside for later use.

Combine the mezcal, blanco tequila, rhubarb liqueur, freshly squeezed lemon juice, rich sugar syrup, and celery bitters in a shaker with ice.

Vigorously shake the mixture to blend and chill the ingredients.

Strain the cocktail into the pre-chilled, ice-filled highball glass, simultaneously pouring in the chilled soda water for a refreshing effervescence.

Garnish with the rhubarb ribbon, elegantly draping it around the inside of the glass.