Ànáþimpépóíšèvúfawe. Jošaásásikaóó. “Squeeze the butter into the dry ingredients until it is fully incorporated.”
The first clause introduces a word not yet seen this month: óíse means “to squeeze”. Nómàk’óla uses the introductory još- to indicate a clause is dependent on a prior clause, and context will indicate how to best interpret the relationship among the two clauses.
In this case, the second clause is a passive construction that says “it is fully incorporated”, so “until” is a logical interpretation of the relationship between the main and dependent clause structures.
The verb sásike “to incorporate, to blend” is a durative form of the verb sáhe “to mix”. The adverb óó is an intensifier, meaning “very” or, in this case, “fully” as we say in English.