In a large saucepan, combine the water, sugar, frozen cherries and blackberries, cinnamon, star anise, cloves, nutmeg, ginger, pepper, and cardamom. Stir to combine, then place over medium high heat.
Bring the mixture to a boil, then simmer on LOW, covered with saucepan lid, for 20 minutes.
Strain and allow to cool to room temperature.
Stir in the orange juice, lemon juice, vanilla extract, and almond extract. This is your Old Fashioned Dr. Pepper Syrup. Store in an airtight container in the fridge for up to 2 weeks.
Enjoy 1/4 cup of the syrup with 1/2 cup sparkling water. Add more syrup to personal preference. Enjoy!