Here is the full list of all 40 Cooking Witch achievements.
Complete Mission: Cook 10 Green Kids
Complete Mission: Do 5 Fatal Kid Drops
Complete Mission: Eat 25 Meat
Complete Mission: Cook 10 Kids
Complete Mission: Collect 3 Hearts
Complete Mission: Collect 5 Stars
Complete Mission: Cook 3 Red Kids
Complete Mission: Cook 3 Green Kids
Complete Mission: Eat 5 Meat
Complete Mission: Do a Fatal Kid Drop
Complete Mission: Cook 3 Kids
Complete Mission: Knock out a Daddy
Complete Mission: Cook a Daddy
Complete Mission: Knock Out 3 Daddys
Complete Mission: Cook 10 Red Kids
Complete Mission: Collect 15 Stars
Complete Mission: Collect 10 Hearts
Complete Mission: Cook 3 Daddys
Complete Mission: Cook 25 Kids
Complete Mission: Eat 50 Meat
Complete Mission: Do 10 Fatal Kid Drops
Complete Mission: Cook 20 Green Kids
Complete Mission: Knock Out 6 Daddys
Complete Mission: Cook 20 Red Kids
Complete Mission: Collect 25 Stars
Complete Mission: Collect 20 Hearts
Complete Mission: Cook 6 Daddys
Complete Mission: Cook 50 Kids
Complete Mission: Eat 100 Meat
Complete Mission: Do 20 Fatal Kid Drops
Complete Mission: Cook 35 Green Kids
Complete Mission: Knock Out 10 Daddys
Complete Mission: Cook 35 Red Kids
Complete Mission: Collect 45 Stars
Complete Mission: Collect 35 Hearts
Complete Mission: Cook 9 Daddys
Complete Mission: Cook 75 Kids
Complete Mission: Eat 200 Meat
Complete Mission: Do 40 Fatal Kid Drops
Reach an All-Time Total Meat Score of 10000