Start with the base. In a jar or bowl, add 1/2 cup rolled oats and 2/3 cup milk.
If you like yours extra creamy, use 3/4 cup milk.
Add protein and richness. Stir in 1/4 cup plain Greek yogurt (optional) and 1 tablespoon nut or seed butter. This creates that cookie dough texture.
Sweeten and flavor. Add 1 to 1 1/2 tablespoons maple syrup or honey, 1/2 teaspoon vanilla extract, and a small pinch of salt. A pinch of cinnamon is nice here too.
Boost texture. Mix in 1 teaspoon chia seeds and 1 teaspoon ground flaxseed if using.
They help thicken and add a subtle nutty note.
Fold in the chocolate. Stir in 1 to 2 tablespoons mini chocolate chips. Mini chips mean more chocolate in every spoonful.
Stir well. Make sure everything is combined, then taste. Adjust sweetness or salt to your liking.
Chill overnight. Cover and refrigerate for at least 4 hours, but overnight is best.
The oats soften and the flavors meld.
Serve. In the morning, give it a good stir. If it’s too thick, splash in a little more milk. Top with extra chocolate chips or a tiny drizzle of nut butter if you’re feeling fancy.