Choose your container: Use a jar or airtight container with at least a 12–16 oz capacity to leave room for stirring and toppings.
Add dry ingredients: Add 1/2 cup gluten-free rolled oats, 1 tablespoon chia seeds, and a small pinch of salt to the container.
Mix the liquids: Pour in 1/2 cup milk, 1/4 cup yogurt, 1–2 teaspoons maple syrup or honey, and 1/2 teaspoon vanilla extract. Stir thoroughly so the chia doesn’t clump.
Fold in berries: Gently stir in 1/2 to 3/4 cup berries.
If using frozen berries, no need to thaw; they’ll soften overnight and lightly tint the oats.
Adjust thickness: If you like thicker oats, add another teaspoon of chia. For looser oats, add a splash more milk.
Cover and chill: Seal the container and refrigerate for at least 4 hours, ideally overnight (8–12 hours).
Stir and top: In the morning, give it a good stir. Add your favorite toppings—nuts, seeds, coconut, or a spoonful of nut butter—for extra texture and flavor.
Serve cold or warm: Enjoy straight from the fridge, or warm gently in the microwave for 30–60 seconds if you prefer it cozy.