I agree with most comments so far, the art and sound design does so much for this game. It takes a very bare bones experience and turns it into something genuinely enjoyable.
I think you should try and figure out a way to add just a little more depth to the gameplay. maybe you can only hold a certain number of each item. Maybe you can hold three eggs at the most, but when holding three eggs you can still squeeze in one unit of vanilla extract, or something like that. And maybe your ingredients get shuffled after every recipe, so it feels less repetitive.