Matcha Overnight Oats

Matcha Overnight Oats

There's something deeply satisfying about opening the fridge to find a perfectly set jar of matcha overnight oats waiting for you. Vibrant green, subtly earthy, and ready to eat, no cooking, no fuss, no morning brain required.

This recipe pairs the slow-release energy of rolled oats with the focused calm of ceremonial-grade matcha. You get a proper hit of fibre alongside the catechin antioxidants matcha is famous for, specifically EGCG, which supports metabolism and focus. It's a genuinely nutritious breakfast that also happens to look stunning.

Five minutes the night before. That's all it takes.

Ingredients

• 80g (1 cup) rolled oats, use whole rolled oats, not instant, for the best texture
• 200ml (¾ cup + 1 tbsp) oat milk, or any milk you prefer
• 1 tsp (2g) matcha powder, culinary grade works perfectly here
• Buying tip: Compare powders in our best culinary matcha UK guide, scored for flavour retention, colour, bitterness, and cost per recipe.
• 1 tbsp honey or maple syrup
• 1 tsp chia seeds
• Pinch of salt

Suggested toppings

• Sliced kiwi
• Sliced banana
• Crunchy granola
• Honey drizzle
• Coconut flakes or fresh berries

Method

1. Bloom the matcha first. Add the matcha powder to your jar or bowl with 2 tablespoons of the oat milk. Whisk vigorously with a small whisk or fork until completely smooth with no lumps. This step is essential, matcha clumps stubbornly if you skip it.

2. Combine everything. Add the rolled oats, remaining oat milk, chia seeds, honey or maple syrup, and a small pinch of salt. Stir thoroughly until evenly combined and the mixture is uniformly green.

3. Seal and refrigerate. Cover tightly with a lid or cling film and place in the fridge for at least 6 hours, or overnight. The oats and chia seeds will absorb the liquid and thicken into a creamy, pudding-like consistency.

4. Serve and top. In the morning, give the oats a good stir. If the mixture is too thick, add a splash of oat milk to loosen. Top with sliced kiwi, banana, a handful of granola, and a drizzle of honey.

Tip: For the smoothest, most vibrant result, sift your matcha through a fine mesh sieve before blooming. Even culinary-grade matcha can have small clumps straight from the tin.

Why matcha works brilliantly in overnight oats

Matcha's earthy, slightly sweet flavour mellows beautifully overnight as it infuses into the oats. The L-theanine in matcha pairs with the slow-digesting carbohydrates in oats to give you steady, calm energy, no caffeine spike, no mid-morning crash. Combined, you're getting beta-glucan fibre for gut health and a concentrated dose of antioxidants that's roughly 10 times what you'd get from a standard cup of green tea.

Frequently asked questions

How do you add matcha to overnight oats?

Always bloom the matcha first by whisking it with a small amount of liquid (2 tablespoons) until completely smooth before adding the remaining ingredients. If you simply dump matcha powder into the full mixture, you'll end up with bitter green lumps throughout. A small whisk, fork, or even a chasen (bamboo matcha whisk) all work well.

Does matcha taste good in oats?

It genuinely does. The earthy, vegetal notes of matcha become softer and more rounded after sitting in the oats overnight. The honey or maple syrup balances any bitterness, and the oat milk adds natural sweetness. If you're new to matcha, start with half a teaspoon and work up.

Can I prep matcha overnight oats 3 days ahead?

You can safely refrigerate them for up to 48 hours without any issues. Beyond that, the colour can dull from bright green to olive and the texture becomes overly soft. For meal prepping, prepare two jars at once but save a third batch's dry ingredients in a separate jar, just add the liquid two nights before you need it.

What are good toppings for matcha oats?

Fresh fruit like kiwi, banana, mango, and raspberries all pair beautifully with matcha. For crunch, add granola, toasted coconut flakes, or chopped pistachios. A drizzle of honey, a spoonful of nut butter, or a scattering of cacao nibs all work wonderfully too. Add toppings just before eating so they stay fresh and crunchy.