Pretty nice art and function, lots of potential. Here goes my ideas :)
For the pink one you could use sugar and pink dye, pretty much like some IRL frosting, and that would work with every color/flavor.
Maybe use seeds when you need to represent sprinkles.
Also, as they restore hunger like regular mid food, maybe you can ad the option to bake them, and make a version of each one (baked one) that restores more than the raw ones.
You could expand it even more with this recipe: Baked Donut + Chocolate (Sugar + Cocoa) = Chocolate-Filled Donut.
For the pink one you could use sugar and pink dye, pretty much like some IRL frosting, and that would work with every color/flavor.
Maybe use seeds when you need to represent sprinkles.
Also, as they restore hunger like regular mid food, maybe you can ad the option to bake them, and make a version of each one (baked one) that restores more than the raw ones.
You could expand it even more with this recipe: Baked Donut + Chocolate (Sugar + Cocoa) = Chocolate-Filled Donut.
Wish you luck 🍀