cook up (v.)
- ad-lib
- angle
- beget
- breed
- brew
- cabal
- coin
- collude
- complot
- conceive
- concoct
- connive
- conspire
- contrive
- counterfeit
- countermine
- counterplot
- design
- develop
- devise
- discover
- engender
- engineer
- evolve
- extemporize
- fabricate
- fake
- fantasize
- finagle
- fix
- forge
- formulate
- frame
- fudge
- generate
- hatch
- improvise
- intrigue
- invent
- machinate
- maneuver
- manufacture
- mature
- mint
- operate
- originate
- pack
- plan
- plot
- prearrange
- premeditate
- procreate
- rig
- scheme
- spawn
- vamp
- wangle