Here is the full list of all 78 Freshly Frosted achievements.
Complete every puzzle
Complete Box 12
Solve Box 12 Puzzle 9
Solve Box 12 Puzzle 5
Solve Box 12 Puzzle 1
Jam a factory after you've solved the puzzle
Complete Box 11
Solve Box 11 Puzzle 10
Solve Box 11 Puzzle 8
Create a factory that takes more than 250 steps to complete
Solve Box 11 Puzzle 2
Complete Box 10
Solve Box 10 Puzzle 8
Solve Box 10 Puzzle 5
Solve Box 10 Puzzle 1
Complete Box 9
Solve Box 9 Puzzle 9
Solve Box 9 Puzzle 6
Solve Box 9 Puzzle 1
Complete Box 8
Solve Box 8 Puzzle 10
Solve Box 8 Puzzle 8
Solve Box 8 Puzzle 5
Complete Box 7
Solve Box 7 Puzzle 10
Solve Box 7 Puzzle 8
Solve Box 7 Puzzle 4
Deliver 5,000 Donuts
Make three delivery counters receive their first donut at the same time
Complete a puzzle with a conveyor that's all on its own
Complete Box 6
Dance along to the music
Solve Box 6 Puzzle 9
Solve Box 6 Puzzle 7
Solve Box 6 Puzzle 4
Complete Box 5
Solve Box 5 Puzzle 9
Solve Box 5 Puzzle 6
Solve Box 5 Puzzle 3
Deliver 4,000 Donuts
Complete Box 4
Solve Box 4 Puzzle 9
Solve Box 4 Puzzle 4
Deliver 3,000 Donuts
Solve Box 4 Puzzle 1
Complete Box 3
Solve Box 3 Puzzle 10
Deliver 2,000 Donuts
Solve a puzzle with impatient mode turned on
Finish viewing the credits
See the Production Kitties section of the credits
See the Special Thanks section of the credits
See the Playtesters section of the credits
See the Localization section of the credits
See the QAG section of the credits
See Ty, Amanda, Ally, and Josie in the credits
Solve Box 3 Puzzle 7
Deliver 1,000 Donuts
Watch a completed puzzle for a while
Solve Box 3 Puzzle 1
Complete Box 2
Skip a puzzle
Solve Box 2 Puzzle 10
Solve Box 2 Puzzle 8
Solve a puzzle with symmetry to deliver a donut with all the toppings
Solve Box 2 Puzzle 5
Complete Box 1
Create a factory that will never jam but never deliver a donut
Solve a challenging level without deleting, undoing, or replacing conveyors
Start a factory with the music volume all the way up!
Think about a puzzle for a while
View a hint
Clear the board several times in a short amount of time
Solve Box 1 Puzzle 8
Solve Box 1 Puzzle 6
Fast-forward
Solve Box 1 Puzzle 3
Solve Box 1 Puzzle 1