So we tried the experiment two days in a row. Replace part of the morning serving of grain with an egg. Won't that stick with her longer? No, she says. She enjoyed having an egg for breakfast, but was famished by midmorning, whether or not she had her egg with a teaspoon of orange marmalade. She offered the rest of her hardboiled eggs to the rest of the family, and is now again happily eating a cereal-and-milk breakfast every morning.