In a medium saucepan, combine ketchup, vinegar, brown sugar, honey, and mustard. Stir until smooth. No clumps, please—we’re aiming for glossy not chunky.
Add Worcestershire (if using) and spices. Bring to a gentle simmer over medium heat.
Reduce heat to low and simmer 8–10 minutes, stirring occasionally. Let it thicken and kiss the flavors together.
Taste and adjust. If you want more sweetness, add a touch more honey; if you crave spice, add a shake of cayenne. Remember: you’re the boss of this sauce.
Remove from heat and let cool slightly. The magic thickens as it rests, so don’t rush perfection.