Sparkling Rhubarb Margarita is that perfect balance of sweet, tangy, and fizz that is the mark of a delicious cocktail!
Place rhubarb, sugar, and water in a medium sauce pan and bring to a strong simmer. Reduce heat and simmer for 10-15 minutes. Allow to cool and refrigerate until needed.
Place rhubarb simple syrup, tequila, and lime juice in pitcher. Gently stir to combine. Add ice.
Top with club soda and sparkling wine (cava, brut, etc.).