Bircher Muesli with Grated Apples and Peanut Butter
Bircher muesli with grated apples and peanut butter is the kind of breakfast that feels like a treat while secretly being wholesome and nourishing. Best of all, it’s prepped the night before, so you wake up to a creamy, satisfying bowl that’s ready to enjoy without lifting a finger.

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What Is Bircher Muesli?
Bircher muesli was “invented” in the early 20th century by a Swiss physician named Maximilian Bircher-Benner, who served it to his patients to get them to eat more fresh fruit. He believed that the treatment against human degeneration was based on eating whole foods, and that raw fruits and vegetables held the most nutritional value.

How to Make Bircher Muesli
The original Bircher muesli recipe was much more fruit-forward than grain-heavy. These overnight oats with apple, however, take inspiration from my Basic Peanut Butter Overnight Oats and uses just a handful of simple ingredients:
- Rolled oats – My go-to for the best texture. Quick oats also work, but keep in mind they’ll need much less soaking time.
- Apple – Any variety will do, though sweeter apples (like Fuji, Gala, or Honeycrisp) add the nicest flavour.
- Milk – Use dairy or your favourite plant-based milk—both work perfectly.
- Honey or agave syrup – Adjust the amount to match your preferred level of sweetness.
- Peanut butter – Or swap in another nut butter. Almond butter pairs especially well with the apple.
- Cinnamon (optional) – Adds a cozy, apple pie–like flavour that makes this feel extra special.
If you’re used to overnight oats, you’ve probably heard the common reassurance not to worry if your mixture looks too liquidy. With Bircher muesli, it’s the opposite—I want to reassure you not to worry if it looks a little dry. Rolled oats soak up a surprising amount of liquid overnight, but the magic happens when the grated apple releases its juices, making the whole mixture perfectly creamy and just “mushy” enough.

Bircher Muesli FAQs
This part comes down to texture preference. If you like your oats with a bit of chew, rolled oats are the way to go. If you prefer a softer consistency (and don’t want to wait overnight), quick oats will do the trick—they only need about 30 to 60 minutes of soaking. For this recipe, I recommend rolled oats since they hold their texture beautifully after an overnight rest.
You might be wondering if grated apple left in the fridge overnight will turn brown. The good news: it won’t! Apples (and many other fruits) brown when exposed to oxygen—a process called oxidation. But when you submerge the apple in liquid and seal the container tightly, the fruit stays protected, keeping its fresh flavour and colour intact.
Traditionally, Bircher muesli is served chilled, which makes it wonderfully refreshing on warm mornings. But if you’re in the mood for something cozy, you can absolutely heat it up—just pop it in the microwave for about 30 seconds before adding any extra toppings.
Because of the grated apple, Bircher muesli doesn’t last quite as long in the fridge as classic overnight oats. It’s best eaten the next morning, though it will stay fresh for up to two days.

More Overnight Oats Recipes
- Banana Peanut Butter Overnight Oats
- Blueberry Overnight Oats
- Chocolate Overnight Oats
- Overnight Steel Cut Oats
- Yogurt Overnight Oats
Or, click here for a complete listing of overnight oats.

Bircher Muesli with Grated Apples and Peanut Butter
Ingredients
- ⅔ cup (65 g) rolled oats
- 1 medium apple, grated
- 1 tablespoon honey or agave syrup
- ⅔ cup (160 ml) milk, dairy or plant-based
- 1 tablespoon peanut butter, or other nut butter
- 1 teaspoon cinnamon, optional
Instructions
- In a jar or bowl, combine the oats, grated apple, honey, milk, nut butter and cinnamon. Stir well.
- Place the lid on the jar (if using), or cover the glass tightly with cling foil.
- Refrigerate for at least 4 hours. Top with more apple chunks, a swirl of nut butter and a dash of cinnamon before serving.



It was a big hit, however… I do wonder where the ‘bircher muesli’ comes in for this recipe?