Loved the music and the art. Text was a bit too small. Searching for recipes in the book was annoying since it had mostly empty pages. Overall, it was pretty good.
I think one page with question mark is fine. Or you could have a final total page number like page 2/20 to show everything pending unlocks. Or just a navigation button that moves you to next/previous filled recipe page. Just any way to avoid having to click through ten empty pages to find a recipe.
