Forget the blue one. It's no use.

Prepare milk and eggs directly (in the backpack)

Then go to the kitchen, choose the second one (that is, choose your own dishes to cook), and then choose milk and eggs.

Wait a few minutes to finish the pudding!

PS: You need a frying pan to make pudding. I don't know if you have.

When the market is 25%, there will be a kitchen shop in the market where you can buy it! (required 10000G)