Mustard barbecue sauce is (in my opinion) the best kind to put on barbecue. I'm not the biggest fan of most red tomato/ketchup based sauces because they can be so sweet or faux-smoked. Mustard barbecue sauce has much more range! You can have it with a nice vinegar bite or super spicy, or you can tone it down with brown sugar until it's almost more like a honey mustard.

I had my first taste of mustard barbecue sauce at Mark's Feed Store in Louisville, KY about ten years ago. I have been addicted since. I tried my best to create something a little similar to theirs but I might just need to order a bottle. :D

Step 1: Ingredients

3/4 cup yellow mustard
1/4 cup apple cider vinegar
2-3 tablespoons brown sugar
1/2 tablespoon paprika
1 teaspoon worchestershire
1/2 teaspoon black pepper
1 teaspoon hot sauce
1 tablespoon ketchup
pinch of celery seeds

So this is what I went with! I originally left out the celery seeds, but after tasting the Mark's Original sauce against mine, I realized that was a big part of what it was missing. You could also use celery salt, I'm sure - it might even work better!

Step 2: Mix It All in a Bowl

Seriously, that's it. Combine everything, mix and it's done!

I'd recommend starting with two tablespoons of sugar and working your way up. You can also start with a little less vinegar if you're not big on it. :D

This is not a barbecue sauce you'll need to cook. This does mean that it's best the next day, however - the flavors need to mingle overnight in the fridge. You can definitely choose to simmer it, but I wouldn't do it longer than five minutes or so, because it's already quite thick.

Step 3: Taste and Then Put It in the Fridge

After it's all mixed, do a taste test and alter as necessary. :D

Then pour it into a jar or squeeze bottle and store in the fridge. I've only ever had it around for a week, so I can't speak to how long it'll last, but it's so good that I hope it won't survive your next cookout or bbq!