In a medium saucepan, combine ingredients for syrup. Cook on medium until sugar is dissolved and berries have cooked down, about 5 minutes or so.
Remove pan from heat and allow to cool to room temperature
Strain simple syrup mixture to remove berries into a bowl through a fine mesh strainer.
Tequila Soda Cocktail
In a cocktail shaker, mix together triple berry simple syrup, tequila, lemon lime soda and lime. Shake lightly. The soda will bubble over if you shake too vigorously.
Pour over a glass of ice into your favorite cocktail glass or stemless wine glass.
Top with a handful of mixed berries for garnish, and enjoy!
Notes
Be sure to let syrup cool to room temperature before straining.