Here is the full list of all 17 MINICHEF achievements.
Make 50 combinations in normal mode
Make 50 combinations in speed mode
Make 50 combinations in dark mode
Make 50 combinations in ice mode
Make 50 combinations in thief mode
Buy all the gamemodes
Buy all the skins
Make a combo of 5 recipes
Visit the credits
Play thief mode as a thief
Play ice mode as ice-head
Play dark mode as darkchef
Earn 999 cookies
Earn 666 cookies
Finish your first game of MINICHEF
Buy a new skin
Buy a new game mode