Mix the base:In a jar, combine oats, chia seeds, milk, and yogurt. Stir well to avoid clumps.
Add flavor:Add honey (or maple syrup), flaxseeds, and a pinch of cinnamon for sweetness and texture.
Add fruit:Top with fresh or frozen berries. You can lightly press them into the mix or leave them on top.
Refrigerate overnight:Cover the jar and refrigerate for at least 6 hours (or overnight). The oats and chia will absorb the liquid and thicken.
Serve:In the morning, stir gently and add extra berries, nuts, or a drizzle of honey if desired. Enjoy cold!