Measure and prep your ingredients. Weigh 80 g rolled oats, 20 g chia seeds, 20 g almond butter, and 160 g mixed berries. Accurate measurements ensure consistent texture and hydration — oats and chia absorb liquid predictably when ratios are right.

In a medium mixing bowl or 1‑liter jar, combine the rolled oats and chia seeds. Add a single pinch of salt and the pinch of cinnamon. The salt brightens flavor and the cinnamon adds aromatic warmth; the chia seeds will act as a thickener, absorbing liquid and giving the final oats a custard-like body.

Whisk the almond milk, vanilla extract and honey (or maple syrup) together in a small bowl until the honey is dissolved. Dissolving the sweetener and vanilla first helps disperse flavor evenly through the cold liquid — if you drop honey straight into the jar it can clump and create uneven sweetness.

Pour the sweetened almond milk mixture over the oats and chia. Stir thoroughly to combine so all oats are moistened. This first stirring ensures each oat flake is hydrated and helps prevent dry pockets; chia seeds should be distributed evenly to avoid soggy clumps.

Warm the almond butter briefly: place the 20 g almond butter in a small microwave-safe bowl and microwave 10–12 seconds, or whisk it briskly with 1–2 teaspoons of the oat mixture until it loosens into a pourable emulsion. Warming or emulsifying almond butter makes it blend more smoothly into the oats and prevents large fatty pockets.

Add the loosened almond butter to the oat mixture and stir well until incorporated. If you prefer streaks of almond butter, reserve half and swirl in the morning for visual contrast and slightly firmer ribbons of nut butter.

Transfer the mixture into two serving jars or bowls, cover tightly, and refrigerate for at least 6 hours, ideally overnight. Chilling is the 'cook' step here — the oats hydrate, chia swells, and flavors meld into a creamy, set texture.

While the oats chill (or just before serving), macerate the berries: toss the 160 g mixed berries with a teaspoon of the honey (from the 14 g) and a light pinch of salt in a small bowl. Gently mash a few berries with the back of a spoon to release juices. Macerating brightens the berries' sweetness, creates a glossy syrup and integrates their acidity into the dish.

In the morning, remove the jars from the fridge and taste. If the oats are too thick, loosen with a splash (1–2 tbsp) more almond milk; if too thin, add a teaspoon of chia and give it 10–15 minutes to thicken. Stir vigorously to recombine — chilling can cause slight separation; stirring restores smoothness and distributes any settled flavors.

Assemble each serving: spoon half the macerated berries over the oats, swirl or dollop any reserved almond butter on top, then finish with your choice of toasted sliced almonds or shredded coconut for crunch. Toasting the almonds or coconut for 2–3 minutes in a dry skillet amplifies their nuttiness and adds a warm aroma.

Serve cold or at room temperature. Leftovers keep tightly covered in the refrigerator for up to 3 days; give them a good stir before eating and add a splash of almond milk if needed.