Apple cinnamon overnight oats in a jar

Apple cinnamon overnight oats in a jar turn rolled oats, yoghurt and fresh apple into a cool breakfast you can grab on a busy morning. The oats soften overnight while chia adds a spoonable, creamy body, and cinnamon keeps the flavour warmly familiar. I like the routine: mix two jars before bed, then add something crisp just before eating.

For a brekkie on the run, this is an easy win in Australian households where work starts early and breakfast often happens between the kettle and the front door. This version uses metric measurements, everyday ingredients and a 400 mL glass jar for each person. There is no cooking until breakfast, apart from an optional quick apple-softening step.

Pick ingredients that suit your pantry

Coles and Woolworths are good places to start: look for rolled oats labelled “traditional oats” rather than instant porridge oats if you want a softer, more spoonable result. The same shelves carry Greek yoghurt, chia seeds and seasonal apples. Grated Granny Smith apples add brightness, while sweeter Pink Lady apples work well if you reduce the honey.

For the oat base, gather:

160 g rolled oats
240 mL milk
120 g plain Greek yoghurt
2 tbsp chia seeds, 1 tbsp honey or maple syrup and 1/4 tsp fine salt

For the apple topping, use:

2 small apples, coarsely grated or finely chopped
2 tsp ground cinnamon, divided
30 g walnuts or pecans, roughly chopped
2 tbsp raisins or chopped dates, optional

Choose a 400 mL jar with a screw-top lid for each serving. If your oats are certified gluten-free, use those and keep the preparation tools clean, as oats are not naturally gluten-free. For a lower-sugar version, leave out the honey, use a very sweet apple and add extra yoghurt at breakfast.

Mix the base for a creamy texture

Stir the oats, chia seeds and salt together in each jar so the chia is evenly distributed. This prevents it settling in one sticky pocket and helps the mixture thicken evenly through the night.

Whisk the milk, yoghurt and honey or maple syrup in a separate bowl or jug. Pour it over the dry ingredients, press down gently and stir until everything looks combined. A few lumps of yoghurt are fine; they will soften as the oats chill.

Cover both jars and place them in the fridge, ideally at 4°C or below, for at least 8 hours and no longer than 12. In a typical Australian summer, that means putting them in before bed and taking them out before the heat of the day. Give each jar a thorough stir before the first spoonful.

Layer the apple cinnamon topping

Grate the apples just before mixing the topping so their texture stays fresh. Toss the grated fruit with 1 teaspoon of cinnamon, a squeeze of lemon to slow the browning and, if you like, a small pinch of nutmeg. Let it stand for five minutes, then divide it between the chilled jars. Keep the second teaspoon of cinnamon separate for breakfast.

For a softer topping, simmer one chopped apple with a tablespoon of water for about five minutes. Cool it before spooning it over the oats. This is useful when your apples are very firm, and it creates a saucy contrast with the creamy base. You can also use unsweetened apple sauce from the supermarket, checking that it contains no added sugar.

Finish each jar with chopped nuts and a spoonful of homemade granola with oats, adding both just before serving so they stay crisp. Raisins or dates can be mixed into the oats the night before, but fresh fruit, nuts and granola belong on top. Drizzle a little extra honey over the apple if it is not especially sweet.

Adjust it for dairy-free or microwave mornings

Swap dairy milk for unsweetened oat milk and use dairy-free yoghurt if needed; the chia will provide enough body for the mixture to set. For a creamier result without yoghurt, blend the oat milk with one tablespoon of cashew butter before pouring. Taste before adding more sweetener, as different oat-milk brands vary in sweetness.

To turn one jar into warm porridge in the morning, stir in two to three tablespoons of milk, cover loosely and microwave on high for 60 to 90 seconds. Stir again, checking for hot spots, and add another splash of milk if needed. The texture will be looser than the overnight version and closer to traditional porridge.

Other easy changes include folding through a spoonful of peanut butter before chilling, replacing half the yoghurt with mashed banana or adding a teaspoon of vanilla to the wet mixture. Keep the apple and cinnamon combination as the anchor, then adjust the extras to suit your pantry and the person eating.

Store it well and start tomorrow with ease

Keep assembled jars in the coldest part of the refrigerator and eat them within three days. For longer storage, freeze the oat mixture without the fresh apple, nuts or granola, leaving room for expansion. Thaw it overnight in the fridge, stir and add the topping immediately before serving. Refrigerate the homemade granola separately and keep it airtight.

Food safety matters more in warm weather. Keep the jars at 5°C or colder, and do not leave them at room temperature for more than two hours; in hot Australian weather, treat one hour as the limit. If the oats smell sour, the yoghurt has separated badly or the mixture has been warm for hours, make a fresh jar rather than relying on its appearance.

For a balanced breakfast, serve the jar with fresh berries, banana or a few extra spoonfuls of yoghurt, plus protein such as boiled eggs or smoked salmon. A café-style long black alongside the jar makes the simple oats feel like a proper start to the day, even when breakfast is eaten at home.