Combine the base ingredients
Add the ketchup and mustard to a medium, heavy-bottomed saucepan. Stir them together until the mixture looks smooth and uniform, scraping around the edges and bottom of the pan so nothing sticks.
Layer in the sweet and bright flavors
Pour in the apple cider vinegar, then add the brown sugar and lemon juice. Use a whisk or spatula to gently work the sugar into the liquid until there are no big clumps and everything looks evenly moistened.
Add the honey and Worcestershire
Drizzle the honey into the pan, followed by the Worcestershire sauce. Stir well, making sure the honey is fully incorporated so you do not see any thick streaks or separation.
4.Finish with browning and seasoning
Stir in the browning sauce, then add a generous pinch of salt and a few grinds of black pepper. Taste the mixture and adjust the seasoning as needed, adding a bit more salt, pepper, or sugar to suit your preference. 5.Bring to a boil, then simmer
Place the saucepan over medium heat and cook, stirring occasionally, until the mixture comes up to a gentle boil. Once it reaches a boil, reduce the heat to low and let the sauce simmer, stirring every few minutes to prevent sticking.
6.Thicken and deepen the flavor
Continue simmering for about 10 minutes, or until the sauce has thickened slightly and looks glossy and smooth. The sauce should coat the back of a spoon; if you drag your finger through it, it should leave a light trail.
Cool and store
Remove the pan from the heat and let the barbecue sauce cool to room temperature. Transfer it to a clean jar or container, then refrigerate; the flavor will continue to develop as it chills and it will keep well for 2–3 weeks.
