In a bowl, combine the garlic, salt, brown sugar, smoked paprika, chile powder, black pepper, sage, thyme, dry mustard, cumin, coriander, ginger, and cayenne pepper. Generously coat the ribs with the rub then wrap each slab in a double layer of plastic wrap and let them sit at room temperature for up to 2 hours.
Preheat the oven to 325°F.
Line a large rimmed baking sheet with foil. If you have a flat metal cooling rack, arrange it in the baking sheet and place the ribs, bone side down, on the rack. If you don't have a rack, place the ribs, bone side down, directly on the foil-lined baking sheet. Bake the ribs until the meat is tender and starting to pull away from the bones, 1 1/2 to 2 hours. While ribs bake in oven, prepare the sauce (instructions below).
Depending on the size of your grill, place 1 or 2 slabs, bone side down, over the heat and brush the fat-covered side generously with barbecue sauce. Grill the ribs, covered, for 2 minutes. Flip the slab over, brush the bone side with sauce, and grill, covered, until the sauce on the fat-covered side is caramelized and lightly charred, 1 to 2 minutes. Flip the slab over and continue grilling, covered, until the sauce on the bone side is caramelized and lightly charred, 1 minute. Transfer the ribs to a cutting board and let them rest for 10 minutes. If necessary, repeat the grilling and glazing process with the second slab of ribs. Cut between the ribs and serve immediately with plenty of barbecue sauce on the side.
In a heavy, medium saucepan over moderately low heat, cook the bacon until the fat renders and the bacon starts to brown, about 10 minutes—do not let the bacon get crispy.
Add the onions and continue cooking, covered and stirring occasionally, until the onions are soft and translucent, about 10 minutes.
Add the garlic, sage, and thyme and cook, stirring occasionally, for 1 minute.
Add the smoked paprika, chile powder, cumin, black pepper, and ginger and cook, stirring, for 1 minute.
Add the coffee, brown sugar, yellow mustard, Worcestershire sauce, and vinegar and stir well to combine. Raise the heat to moderate and bring the sauce to a boil, scraping the saucepan with a wooden spoon to remove any browned bits from the bottom.
Add the ketchup, hot sauce, and bay leaves, then lower the heat to moderately low and simmer the sauce until it's thick enough to coat the back of a spoon but isn't as thick as ketchup, about 30 minutes.
Taste the sauce and add more vinegar or hot sauce to taste and season with salt and pepper. Remove and discard the bay leaves.
Preheat oven to 350 degrees F. Coat inside of a 9-inch fluted tube pan, such as for a Bundt Cake, with cooking spray.
Place bacon in large skillet and cook over medium-high heat, turn occasionally until evenly browned. Drain the bacon slices and crumble bacon.
Melt margarine in a small saucepan over medium heat; stir in the brown sugar and maple syrup. Bring the mixture to a boil; cook and stir until it begins to foam, about 1 minute. Remove from heat.
Mix white sugar and cinnamon in a sealable plastic bag; add 6 to 8 biscuit pieces at a time and shake until well coated. Pour any remaining sugar-cinnamon mixture into brown sugar mixture. Place saucepan over medium heat and cook and stir until sugar dissolves, for about 2 to 3 minutes.
Sprinkle 1/4 the bacon pieces in the bottom of the tube pan; pour in about 1/4 the brown sugar mixture. Arrange 1 layer of biscuit pieces in the tube pan; sprinkle in 1/4 the bacon pieces. Drizzle about 1/4 the brown sugar mixture over the biscuit pieces. Continue layering until all the ingredients are used, ending with a drizzle of brown sugar mixture.
Bake in the preheated oven until biscuits are cooked through, about 35 minutes. Allow to cool in pan, 10 to 20 minutes; invert onto a serving plate.
Place tomatoes and shallots in blender with pan juices. Pulse, half at a time, until liquefied. Add brown sugar, vinegar, the 3 tablespoons of olive oil, paprika, and, if desired, fleur de sel. Blend until smooth. Taste and adjust seasonings if desired. Remove from blender. Put through a food mill or fine mesh strainer to remove seeds and skins.
Build charcoal fire or preheat gas grill for indirect cooking. Core tomatoes; coat tomatoes and shallots with olive oil. Season with salt. Place in disposable aluminum pan. Place in center of grill indirectly over medium heat; grill, covered, 30 minutes or until tomato skins are bursting and shallots are soft; remove.
Place strained liquid in large saucepan. Simmer gently 5 minutes. Remove and use immediately or refrigerate in tightly covered container for up to 1 week.
Place Indiana Kitchen ribs, bone-side down, in center of grill or in rib rack, making sure they are not over direct flame. Grill, covered, over indirect medium heat (about 325 degrees F) for 2 to 2-1/2 hours or until meat is tender and has pulled back from ends of bones (see tip below). Brush with some of the BBQ sauces 10 minutes before end of grilling.
Remove ribs from grill and let rest 10 minutes. Cut into portions; pass remaining sauce. Makes 10 servings with 2-1/3 cups barbecue sauce.