Makes 5 cups.
- ¾ cup granulated sugar
- ¾ cup hot water
- 1 liter cold seltzer water
- ½ teaspoon + ⅛ teaspoon root beer concentrate
- Dissolve the sugar in the hot water.
- Add the root beer concentrate and let cool.
- Combine the root beer mixture with the cold seltzer water, drink immediately, or store in refrigerator in tightly covered container.
- Note: this will not fit in a standard 1 liter bottle.