Mix the base: In a medium mixing bowl, combine rolled oats, milk, and Greek yogurt. Stir until the oats are well coated and the mixture looks creamy.
Add mocha flavor: Whisk in the cocoa powder, instant coffee (or cooled espresso), maple syrup, vanilla extract, and a small pinch of salt. Mix thoroughly so the cocoa blends smoothly into the oats without lumps. If you prefer a slightly thicker consistency, stir in chia seeds at this stage.
Adjust sweetness and flavor: Taste the mixture and adjust by adding more maple syrup or honey if you like it sweeter. For a stronger coffee flavor, you can stir in an extra half teaspoon of instant coffee.
Chill overnight: Transfer the mixture into jars or airtight containers. Seal with lids and place in the refrigerator for at least 6 hours or overnight. This allows the oats to soak up the liquid and the flavors to meld beautifully.
Serve: In the morning, give the oats a good stir. If they’re too thick, add a splash of milk. Spoon into bowls or enjoy directly from the jar. Top with dark chocolate shavings, banana slices, or a handful of crushed nuts for extra crunch and flavor.
Extra tip: For a café-style treat, drizzle a little chocolate syrup or caramel on top before serving.