Step 1

Preheat oven to 325°F. Season brisket on all sides with garlic salt and black pepper.

Step 2

In a large 6-8 quart Dutch oven or deep baking pan sprayed with cooking spray, center brisket seasoned on all sides with garlic salt and black pepper.

Step 3

In a small bowl whisk together Dr Pepper, ketchup or chili sauce, brown sugar, apple cider vinegar, chili powder, ancho chili powder, liquid smoke, onion and garlic until sugar has dissolved. Pour over brisket.

Step 4

Cover Dutch oven with a lid or cover baking pan tightly with foil. Bake for 3-3 1/2 hours or until fork tender.

Step 5

Remove brisket to a platter, to rest. Place Dutch oven on stovetop. Add 2 Tbsp tomato paste, mixing until fully dissolved. Repeat, as needed to thicken sauce to taste. (If using a baking pan, pour liquid into a saucepan.)

Step 6

Slice brisket across the grain, serve drizzled with barbecue sauce.