Does anyone know how to seal ceramic tiles? I painted this for a friend using acrylic on a glazed…

Does anyone know how to seal ceramic tiles? I painted this for a friend using acrylic on a glazed ceramic tile, now I’m not sure where to go from here. Not sure if I can just bake it, or if I need to seal and bake? And if I seal it, what’s best to use? Google is yielding no consistent results and I don’t want to mess it up doing something I’m not sure will work. Any tips would be much appreciated! I need to give it to my friend soon.