Hey,Mike......You may have run across this one somewhere and it works well with brisket.

.....BANDERA BARBECUE SAUCE

• 1 tbsp. oil
  
• 3 cups onion,chopped fine
  
• 6 minced garlic cloves
  
• 2 chopped jalapeno peppers
  
• 1 cup chili sauce[like ketchup]
  
• 3/4 cup Worchestershire
  
• 3/4 cup strong black coffee
  
• 1/2 cup dark molasses
  
• 1/4 cup cider vinegar
  
• 2 Tbsp. dark mustard
  
• 2 Tbsp. chili powder
  
• 1 tsp. cumin
  
• 1 tsp ground ginger
  
• 1 tsp kosher salt,or to taste
  
• 1/2 Cup water
  

...Saute first 3 ingredients in oil till soft.....add remaining ingredients,bring to a slow boil,reduce and simmer 45 mins. To clarify chili sauce...it is the ketchup like condiment sold by Heinz,Delmonte and others and labeled as Chili Sauce....Not the red chile sauce typically made with ancho and New Mexico dried chiles from Hatch,NM and usually harvested in late Sept....[I personally like the Sandia Mountain variety ].These would then be added to sauteed onion and garlic and thinned to taste with homemade unsalted chicken stock.Pureed in the blender and added to everything in life. How's that Smokin'?

one correction, chili sauce, in Texas is not ketchup. If you use ketchup, you'll need to add some heat to make up for it.

So, do the normal thing, make it -- taste it -- then add to it.