Slow Cooker Sweet and Sour Chicken

chicken, cut into bite-size pieces

egg

tapioca flour (or regular flour if not gluten-free)

coconut oil

tomato paste

water

apple cider vinegar

coconut palm sugar (or brown sugar)

coconut aminos (or gluten-free tamari or soy sauce)

freshly grated ginger

small red onion, diced

bell pepper, diced

head broccoli, cut into florets

fresh pineapple, diced