First, make the marinade. Heat sesame oil in small saucepan. Add the ginger and garlic, cooking until fragrant (1-2 minutes). Add the coconut aminos (or soy sauce), rice vinegar, brown sugar, bbq sauce, Worcestershire sauce, smoked paprika and sriracha, whisking to combine. Separately in a small bowl, whisk together the water and cornstarch. Add the cornstarch slurry to the sauce of the pan and keep whisking, bringing to a boil. Then reduce the heat to medium and simmer until the sauce is thickened. Remove from heat.