Bring water to a simmer over medium heat, then remove from heat.
Add rooibos tea bags or loose rooibos tea and steep for 10 minutes.
Remove tea bags or strain loose tea.
Stir in honey or sugar, then refrigerate until chilled.
Serve over ice cubes.
Preheat a grill or grill pan over medium heat.
Grill hot dogs, turning occasionally, until charred on all sides, about 5–7 minutes, reaching an internal temperature of 160°F (71°C).
Open hot dog buns and place tomato slices along one side.
Add grilled hot dogs and place pickle spears on the other side.
Top with relish, pepperoncini, and red onion.
Sprinkle it with celery salt and add yellow mustard.
Serve the hot dogs with mixed fruit and iced rooibos tea.