For berry syrup 2.5 cups blueberries, frozen or fresh 2.5 cups blackberries, frozen or fresh 4 cups water 2 cups sugar Lemon zest from 1/2 lemon 3 Tablespoons lemon juice
For berry sauce 4 Tablespoons butter 2 sage sprigs 8 thyme sprigs 1 onion, minced 2 garlic cloves, minced 1/2 cup red wine vinegar 1 teaspoon gf hot sauce
For ribs 1-1/2 teaspoon garlic powder 1-1/2 teaspoon onion powder 1-1/2 teaspoon Kosher salt 1/2 teaspoon fresh ground pepper 2 racks baby back ribs
For syrup: Add berries and 1 cup water to a medium saucepan and bring to a simmer. Simmer for 15 minutes. Smash berries with a potato masher then strain through a strainer, pressing solids to release the juices; set aside. Rinse out the pan and add sugar, lemon zest and remaining 3 cups water and bring to a boil. Boil over medium heat until syrup reaches 225 degrees with a candy thermometer; this will take about 20-30 minutes. Add berry and lemon juice and boil for another minute. Let cool, then discard zest.
For sauce: In a large saucepan, melt butter. Tie the sage and thyme sprigs together with kitchen string. Add the herb bundle, onion and garlic to the pan and cook over medium heat until onion softens. Add vinegar and bring to a boil. Add 2 cups berry syrup and hot sauce and simmer until volume is reduced to 1-1/2 cups. Let cool. Mixture should be the consistency of BBQ sauce, if it is too thin, add 1 Tablespoon corn starch to 1 Tablespoon water and blend. Add cornstarch mixture to sauce and cook until thickened.
For ribs: Preheat oven to 325 degrees F. Place rib racks on work surface, meat side down. With the tip of a knife, loosen and raise the thin membrane over the bones until you can grab it. Pull it off the bones. In a small bowl, combine garlic and onion powders, pepper and 1-1/2 Tablespoons of salt and blend. Place the ribs on a baking sheet and rub with garlic powder mixture on all sides. Wrap each rack in foil and place back on baking sheet. Roast for 1 hour then remove from oven and drain off juices. Rewrap and place back in the oven increasing oven temperature to 375 degrees F. Cook for 15 minutes. Meanwhile prepare a grill with coals or gas. Remove ribs from foil and brush with sauce and place on hot grill for 15 minutes. Turn ribs over, brush with sauce again and cook for another 15 minutes. Cut ribs into pieces with 2 or 3 bones, mound on plate and serve with extra sauce on side.