concoct
https://gyazo.com/4ba720e4bea414a442a1977a11342446
verb with object
make (a dish or meal) by combining various ingredients:
〈飲食物など〉を(混ぜ［組み］合わせて)作る, 調理する
e.g. they concoct relish from corn that is so naturally sweet no extra sugar is needed.
create or devise (said especially of a story or plan):
〈話･言い訳など〉を作り上げる, でっち上げる, 捏造（ねつぞう）する; 〈計画など〉を仕組む.
e.g. they concocted a preposterous but entertaining story.
DERIVATIVES
concocter noun
ORIGIN
mid 16th century: from Latin concoct-, literally ‘cooked together’, from concoquere. The original sense was ‘refine metals or minerals by heating’, later ‘cook’.