The bute I prefer is powdered apple flavor. Last year or so our vet has ordered maple flavor, and I haven't found one yet that will take it. Huge pain. The apple flavored powder I could put on their feed and everyone I used it on liked it.
The way we give pill form bute is crush it, and put it in a cut off hose. Then, put hose in their mouth and blow it in. This is my least favorite way to administer, but at least you know they are getting a full dose at once. It's not a way I could deal with for very long, as it's a pain.