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What did Princess Diana eat for breakfast?
McGrady recalls that Diana encountered Bircher muesli at a Swiss health clinic and later asked for it at home. In his account, the dish became overnight oats: the oats soaked in orange juice rather than the milk or milk alternative used in many contemporary versions. He has described it as her regular breakfast. Marie Claire’s summary of McGrady’s account gives the ingredients and the Swiss-clinic story.
That history is a former chef’s recollection, not an independently authenticated palace recipe card. McGrady’s website identifies him as Diana’s personal chef from 1993 to 1997 and republishes an interview about his royal cooking. It is useful context for his account, but it does not establish exact palace measurements.
How to make a one-serving version
This published adaptation uses a half-cup of oats and orange juice. The quantities come from a modern recipe based on McGrady’s video, not a record of the amounts served to Diana. Good Housekeeping’s recipe specifies:
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- 1/2 cup old-fashioned rolled oats
- 1/2 cup orange juice
- 1/4 cup Greek yogurt
- 1/4 Honeycrisp apple, grated with its peel
- 1/2 teaspoon lemon juice
- 1/2 teaspoon honey, plus more to serve if desired
- 1/4 cup blueberries
- Walnut halves, to finish
- Stir the oats and orange juice together in a covered container.
- Refrigerate for at least eight hours or overnight.
- In the morning, stir in the Greek yogurt, grated apple, lemon juice and honey.
- Fold in some blueberries, then finish with the remaining blueberries and walnut halves.
For the overnight rest, use a container with a lid; grate the apple shortly before mixing it in so it is ready to add with the other morning ingredients.
How the published recipe versions differ
The shared method is straightforward: soak rolled oats in orange juice overnight, then add yogurt and the other ingredients before serving. The quantities differ because the recipes are written for different batch sizes.
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| Published version | Oats and orange juice | Other ingredients |
|---|---|---|
| Good Housekeeping | 1/2 cup old-fashioned oats and 1/2 cup orange juice for one serving | 1/4 cup Greek yogurt; 1/4 Honeycrisp apple; lemon juice; honey; blueberries; walnut halves |
| The Kitchn | 1 cup rolled oats and 1 cup freshly squeezed orange juice | Greek yogurt, honey, lemon juice, grated Honeycrisp apple, blueberries and walnuts; the recipe lists one cup of yogurt |
These are recipe renderings, not competing canonical royal recipes. Choose the smaller formula for a single bowl, or use the larger one when you want more servings; both retain the orange-juice soak and morning additions.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What the account does—and does not—establish
McGrady’s recollection explains why this breakfast is associated with Diana, while the published recipes make it possible to recreate at home. They do not verify a definitive palace formula or establish nutrition claims about the dish. The useful takeaway is the distinctive preparation: oats chilled in orange juice, then finished with yogurt, apple, honey, lemon, blueberries and walnuts.
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