Coffee Overnight Oats

A creamy, energizing, and make-ahead breakfast perfect for busy mornings and coffee lovers alike.

Coffee + Oats = Your New Favorite Morning Combo

Let’s be real: mornings are hectic. Whether you’re rushing to get the kids ready, heading out for an early workout, or trying to squeeze in a few quiet moments before the day begins, having a breakfast that’s both energizing and ready to go is a total game-changer. That’s where Coffee Overnight Oats come in.

This recipe brings together two beloved morning staples—coffee and oats—into one delicious, creamy jar.

The oats soak overnight in a blend of cold coffee, milk, and a touch of sweetener, transforming into a rich, smooth, and satisfying breakfast with just the right kick of caffeine. It’s like having your coffee and breakfast at the same time—without even turning on the stove.

I first made this when I ran out of milk for my usual overnight oats and decided to pour in some leftover cold brew instead. It turned out to be such a hit that it’s now a staple in our house. Even better? It’s totally customizable.

You can make it dairy-free, add protein, or turn it into a mocha version with just a spoonful of cocoa.

What You’ll Need

  • ½ cup old-fashioned rolled oats
  • 1 tablespoon chia seeds
  • ½ cup brewed coffee or cold brew (cooled)
  • ½ cup milk of choice (almond, oat, dairy, etc.)
  • 2–3 tablespoons plain or vanilla Greek yogurt (optional for creaminess)
  • 1–2 teaspoons maple syrup or honey (adjust to taste)
  • ½ teaspoon vanilla extract
  • Pinch of salt

Optional Add-ins and Toppings:

  • 1 tablespoon cocoa powder (for mocha flavor)
  • 1 scoop vanilla or chocolate protein powder
  • Sliced banana
  • Dark chocolate chips or cacao nibs
  • Granola or toasted nuts
  • Dollop of yogurt or whipped cream for topping

Pro Tips

  1. Use strong coffee or cold brew – The stronger the coffee, the more flavor your oats will have. Just be sure it’s cooled before adding to your mix.
  2. Customize the creaminess – Greek yogurt adds richness and protein, but you can skip it or use a dairy-free yogurt if preferred.
  3. Go mocha-style – Add a tablespoon of cocoa powder for a chocolate-coffee version that tastes like dessert.
  4. Let it sit overnight – A minimum of 4 hours is fine, but 8 hours gives the best texture and flavor.
  5. Double the batch – These oats keep well in the fridge, so prep a few jars for ready-made breakfasts all week.

Tools You’ll Need

  • Mixing bowl
  • Measuring cups and spoons
  • Mason jar or lidded container
  • Spoon or whisk

Substitutions and Variations

  • Dairy-free? Use coconut or almond yogurt, and your favorite plant-based milk.
  • Gluten-free? Use certified gluten-free oats.
  • Add protein? Add a scoop of protein powder or stir in peanut butter.
  • Low-sugar? Skip the maple syrup or sweeten with stevia or monk fruit.
  • Want it iced-latte-style? Blend the finished oats with extra coffee and ice for a chilled, drinkable twist.

Make-Ahead Tips

Coffee overnight oats are perfect for meal prep. Simply mix up a few jars on Sunday night, store in the fridge, and you’ve got breakfast covered through the week. They’ll stay fresh for up to 5 days—just give each jar a good stir before serving. If you like your oats thinner, add a splash of milk or coffee in the morning.

To keep toppings fresh, add fruit, granola, or yogurt just before serving.

How to Make Coffee Overnight Oats

1. Mix All Ingredients

In a bowl or jar, stir together oats, chia seeds, coffee, milk, yogurt (if using), maple syrup, vanilla extract, and salt until well combined.

2. Cover and Chill

Transfer the mixture into a mason jar or container with a lid. Refrigerate for at least 4 hours, preferably overnight.

3. Add Toppings and Serve

In the morning, give your oats a good stir. Add toppings like banana slices, cocoa powder, chocolate chips, or a dollop of yogurt before serving.

Leftovers and Storage

Store any leftovers in a sealed container in the fridge for up to 5 days. Stir before eating, as the oats and chia may settle. If the mixture thickens too much, add a splash of milk or coffee to loosen it up. Add fresh toppings just before serving for best taste and texture.

Fuel Your Morning with Flavor

This Coffee Overnight Oats recipe is the ultimate win-win for busy mornings—you get your caffeine fix and your breakfast all in one jar. It’s creamy, energizing, customizable, and honestly feels like a little treat to start the day.

Whether you’re running out the door or enjoying a slow start to the morning, this recipe has your back. Try it once and I promise it’ll become part of your regular breakfast rotation.

If you try it, leave a comment below! Let me know how you customized it—did you go mocha? Add protein? Share your favorite twist so we can all enjoy better mornings together.

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