OKay, lets start with the good.
The visuals on this are imaculate. the game is so pretty, and i enjoy making the cute cakes, as well as the small interactions with the characters. The concept is really neat!
And the negative. sadly the bugs, weird interaction boxes, design and jam jank creeps in on this one. Even when you manage to avoid the softlocks the game is still pretty janky. The game often doesn't tell you what you need to do (such as what tempature or how to cut Strawberries), and that combined with how Extreamly impatient yuuka is makes the game feel frustrating, or that you just just have to sloppily toss the cake together, espeicaly with the frosting decor part. I know yuuka would be stressed and rushed in this situation but she should seem like she knows what she's doing and not randomly interacting with things until things work.
To end this of on a lighter note, it's my belif that jams are made for this kind of thing. Testing your creativity so see what works and what doesn't. Plus, you made something, which is more then what many people have done. You all should be proud of that, especially with some of you being inexperienced as you are. Your first jams come out half baked so your future ones come out better. And You can't make a cake without breaking a few eggs.
So keep doing what you're doing, and i'd look forward to seeing what idea you guys have planned next