Cheap & Budget Overnight Oats: A Filling Jar for Under R15

2 August 2026 By Jimmy Smith
A budget jar of overnight oats topped with banana and peanut butter

With grocery prices climbing, breakfast is one of the easiest places to save — and overnight oats are about the cheapest healthy breakfast you can make in South Africa. A filling jar costs roughly R10 to R15, less than half the price of a box of cereal per serving and a fraction of a takeaway. Here’s why they’re so affordable, how to make them even cheaper, and every budget recipe on the site in one place.

Why overnight oats are so cheap

Three things keep the cost right down:

Prices are approximate and vary by shop and season, but the maths barely moves: oats plus milk plus a simple topping lands around R10–R15 a jar. Buy the oats in bulk and it drops further.

How to make overnight oats even cheaper

The cheapest toppings that still taste great

You don’t need expensive superfoods to make a jar worth eating. The best-value toppings are the classics:

Budget overnight oats recipes

These jars are built to be cheap, filling and genuinely tasty — a ready-made rotation that won’t stretch the grocery budget:

Cheap & budget overnight oats recipes

6 creamy make-ahead recipes, proudly South African.

Common questions

Are overnight oats cheap to make?

Very. A jar costs roughly R10 to R15 in South Africa — oats are under R2 a serving, and with milk and a simple topping it’s still one of the cheapest healthy breakfasts you can make, well below the cost of cereal or takeaway.

What is the cheapest way to make overnight oats?

Buy plain rolled oats in a 2kg bag (own-brand is fine), soak them in water or long-life milk, skip pricey add-ins like chia and protein powder, and top with banana, peanut butter or frozen fruit. Batch-prepping the week keeps waste and cost down further.

How much does a jar of overnight oats cost?

Around R10 to R15 for a filling jar, depending on your toppings and where you shop. A plain oats-milk-and-banana jar can come in under R10, while adding nuts, seeds or lots of fresh berries pushes it higher.

Can you make overnight oats with just water to save money?

Yes. Water soaks the oats perfectly well — you lose some creaminess, but a mashed banana or a spoon of peanut butter brings it back for very little. It’s the cheapest way to make a jar.

Eating well on a budget is easier than it looks. Join the free 7-Day Overnight Oats Challenge for a week of affordable, proven jars, or browse all our overnight oats recipes.

Hungry for more?

Browse the full collection of proudly South African overnight oats recipes, or start the free 7-Day Challenge.

Browse Recipes →Free 7-Day Challenge
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