Matcha and oat milk are a dream team: earthy depth meets gentle sweetness. This drink isn’t a cocktail, but the perfect base for whatever you want to do with it—whether straight, with a shot of rum, or as the foundation for a matcha latte. The trick is in the straining: only then will the texture be silky smooth, without oat flake residue that could later disrupt the glass. And yes, you can drink it cold too—then it becomes a refreshing matcha shake.
And here’s what you need for the matcha oat drink
80 g oat flakes (fine variety, not coarse)
1 litre water (filtered, room temperature)
2 level tbsp matcha powder (ceremonial grade, not culinary matcha)
3 tbsp maple syrup (grade B or darker, for a stronger caramel note)
1 pinch of sea salt (enhances the sweetness and umami of the matcha)
What matters most
The matcha must be mixed *before* heating with a little liquid—otherwise it will flocculate and settle as a bitter sediment. Do not use boiling water, as it will burn the aromas. If you later combine the drink with alcohol, opt for a high-quality white rum or a mild bourbon whiskey: both complement the earthy notes of the matcha without overpowering them. And yes, the salt is no typo—it rounds off the sweetness and makes the umami of the matcha truly noticeable.
Variations
- Matcha oat drink with rum — stir in 4 cl white rum, garnish with a pinch of cinnamon and toasted oat flakes. Pairs well with desserts or as a digestif.
- Iced matcha shake — blend the cooled drink with 3–4 ice cubes until creamy. Serve with vanilla syrup or a scoop of vegan vanilla ice cream.
- Matcha latte variation — mix the warm drink with frothed oat milk (1:1) and dust with a little matcha powder. For a more tart note, add a little lemon zest.
Frequently asked questions
Can I make this drink with almond milk instead?
Yes, but the taste will be less creamy and nutty. Oat milk harmonises better with matcha because it brings natural sweetness and a similar texture. If you use almond milk, choose an unsweetened variety and add a little more maple syrup.
Why does the matcha sometimes flocculate?
Matcha flocculates if it is added directly to hot liquid or if the temperature is too high. Always mix it first with a little cold or lukewarm liquid, then slowly add it to the warm oat milk while stirring. If it happens anyway: strain through a sieve.
Can I prepare the drink in advance and reheat it later?
Yes, but the flavour will suffer slightly. Matcha develops a bitter note over time. Better: prepare the oat milk ahead and add the matcha only shortly before serving. In the fridge, the finished drink keeps for 1–2 days, but should be briefly reheated before serving.
Which type of matcha is best suited?
For this drink, ceremonial matcha (light green, finely ground) works best. Culinary matcha is too bitter and coarse; it doesn’t suit the creamy texture. If you only have culinary matcha, reduce the amount to 1 tbsp and sweeten more.
