You toast it & drink it? You know me, I just must order anything that sounds unusual. This did not disappoint. Very weird and good milkshake order. I’m not sure if I really tasted the marshmallow, but still enjoy the milkshake. I will have to try it again to reconfirm. They did make a mistake and accidentally gave me Vanilla Milkshake $5 instead. They were very quick to fix the mistake and gave me incorrect milkshake for free. So I got two for price of one. I liked the Vanilla Milkshake, and not just because it was free. You can never go wrong with vanilla.