I got this book from the picture-book section of the library in the 1990s, I think. It was quite new then. It is about someone who wants to make an angel cake as good as her mother’s (grandmother’s?) but she doesn’t know the secret ingredient. Some angels come and make the cake for her, I think. Maybe they eat it too? I am not too clear on the plot, but I thought the illustrations were BEAUTIFUL! The angels are obviously portraits of real people. Obviously, someone else loved this book too because it disappeared, and I could never find it again. The author’s name was at the end of the alphabet- I only remember that because of where the book was on the shelves.
Is it: The High Rise Glorious Skittle Skat Roarious Sky Pie Angel Food Cake
By Nancy Willard, illustrated by Richard Jesse Watson?
Almost definitely The High Rise Glorious Skittle Skat Roarious Sky Pie Angel Food Cake by Nancy Willard. Little girl attempts to make her great-grandmother’s secret angel food cake recipe for her mother’s birthday and gets some help from some angels after spelling LOVE backwards in the sugar.