Heat water to 175°F—this temperature is crucial as it prevents the matcha from becoming bitter, which happens with boiling water. Sift the matcha powder into a small bowl or cup to break up any clumps, then slowly add the hot water while whisking vigorously in a back-and-forth motion until the matcha is completely smooth and frothy with no lumps. This technique ensures a silky texture rather than a gritty one.

In your overnight oats jar or container, combine the dry ingredients first: oats, chia seeds, and salt. Finely mince the medjool date into roughly 1/8-inch pieces—this small size allows the date to distribute its natural sweetness evenly throughout the oats rather than settling as clumps. I find that mincing by hand or with a small knife gives better control than a food processor for this task.

Pour the matcha preparation from Step 1 into the jar with the dry mixture, then add the almond milk, Greek yogurt, and vanilla extract. Stir everything together thoroughly until well combined and the matcha is evenly distributed throughout—you want no streaks of green or pockets of yogurt. The Greek yogurt adds creaminess and protein without the tartness of regular yogurt, which I prefer in sweet breakfast bowls.

Let the jar sit at room temperature for 5 minutes to allow the oats to begin absorbing liquid and the flavors to start melding. Then cover and refrigerate overnight (or at least 4 hours, though overnight gives the best texture). The cold overnight rest allows the oats to fully hydrate and soften while the matcha flavor deepens and becomes more integrated.

Remove from the refrigerator and stir well before serving. If the oats have thickened too much overnight, add a splash of almond milk (about 1-2 tablespoons) and stir until you reach your desired consistency—the oats will continue to absorb liquid, so you want them slightly looser than your final preference. Serve cold or heat gently in the microwave if you prefer a warm breakfast.