How to Make Overnight Bircher Muesli (The Easy NZ Way)
Bircher muesli is the original overnight oats — invented over 100 years ago by Swiss physician Maximilian Bircher-Benner, who prescribed it to patients as a health food. Today it's one of the most popular make-ahead breakfasts in New Zealand, and for good reason: it's delicious, filling, and takes about five minutes to prepare the night before.
What is Bircher Muesli?
Traditional Bircher muesli is rolled oats soaked overnight in apple juice or milk, mixed with grated apple, lemon juice, nuts, and yoghurt. The soaking process makes it creamy and easy to digest — no cooking required. Our version starts with a quality base muesli rather than plain oats, giving you the benefit of nuts, seeds, and flavour built right in.
If you're wondering how muesli compares to plain oats nutritionally, we've covered that in detail in Muesli vs Oats — Which is Healthier?
The Basic Bircher Muesli Recipe
Serves 2 · Prep: 5 minutes · Chill: overnight (4–8 hours)
🥣 Ingredients
80g Muesli & Co muesli of your choice
150ml milk (full-fat, oat milk, or almond milk)
150g plain full-fat Greek yoghurt
1 apple, grated
1 tablespoon chia seeds
Juice of half a lemon
Toppings: fresh berries, sliced banana, a drizzle of honey, toasted nuts
Step-by-Step Method
In a large bowl or two individual jars, combine the muesli, milk, yoghurt, grated apple, chia seeds, and lemon juice. Stir everything together until well combined. The lemon juice brightens the flavour and stops the apple from browning overnight.
Cover the bowl or jars and refrigerate for at least 4 hours — ideally overnight (8 hours). During this time, the oats and chia seeds absorb the liquid and swell, creating a thick, creamy texture. The flavours also meld and deepen beautifully.
In the morning, give it a good stir and add your toppings. Fresh berries work beautifully — blueberries and sliced strawberries are a classic. A small drizzle of honey or a sprinkle of cinnamon adds a little warmth.
Which Muesli Works Best for Bircher?
Almost any muesli works well — the soaking process brings out the natural sweetness of fruit and softens the oats and seeds. Here are our top picks:
- Exotic Muesli — the coconut and tropical fruit notes become even more fragrant overnight. Brilliant.
- Blueberry & Fig Muesli — the figs soften beautifully and the blueberry flavour intensifies. A weekend favourite.
- Keto Power Muesli — ideal if you're watching carbs or managing blood sugar. Read more in our guide for diabetics.
Variations to Try
🥭 Tropical Bircher
Use coconut milk instead of regular milk, add a tablespoon of desiccated coconut, and top with mango, passionfruit, and a squeeze of lime. Perfect for summer.
💪 Berry Protein Bircher
Stir a scoop of vanilla protein powder into the base before refrigerating. Top with frozen mixed berries (they defrost overnight) and a tablespoon of nut butter. Great for a post-workout breakfast — pairs perfectly with the protein strategy in our Top 5 High-Protein Breakfasts guide.
🍎 Apple Pie Bircher
Add half a teaspoon of cinnamon and a pinch of nutmeg to the base. Serve with stewed apple and a sprinkle of granola on top for crunch. Our Tropical Delight Granola works wonderfully here.
Make-Ahead Tips
- Bircher keeps well in the fridge for up to 3 days — make a big batch on Sunday for an easy weekday breakfast
- Keep toppings separate until ready to eat, to avoid sogginess
- If it thickens too much overnight, stir in a splash of milk in the morning
- Glass jars with lids are ideal for storage, portion control, and taking to work
Nutritional note: A serving of Bircher muesli made this way delivers approximately 380–420 calories, 16–20g of protein, and 8–10g of fibre — one of the most complete, satisfying breakfasts you can have. Diabetes-friendly version? Use our Keto Power Muesli and skip the honey.
Pick your favourite from our best-selling muesli range — all handcrafted in Nelson, NZ with no preservatives and no nasties. Delivered to your door.