Cook chickpeas in 4 cups water for 2 to 3 hours (stovetop) or 25 to 30 minutes (pressure cooker). Heat oil in a large skillet over medium heat. Saute onion and basil unti onion is nearly tender. Add garlic and continue to saute until onion is soft and translucent. Stir in tahini and 0.75 cup water. Cook, stirring constantly, until sauce thickens. Remove skillet from heat and set aside. In a small bowl, mix remaining quarter cup water with arrowroot, lemon juice, salsa and tamari. Add to tahini mixture in skillet. Add chickpeas and cook over high heat, stirring constantly until mixture thickens. Per serving: 372 cal, 15 g prot, 275 mg sod, 42 g carb, 19 g fat, 0 mg chol, 26 mg calcium