Tiramisu Overnight Oats

The espresso machine was hissing at six in the morning and I had a sudden craving for tiramisu that I was absolutely not going to indulge at that hour. That is how this breakfast was born, standing in the kitchen in slippers, spooning cold coffee into a jar of oats and hoping for the best. Two days later I had made it three more times and my roommate was leaving passive aggressive notes on the fridge asking where her share was.

I brought these to a weekend brunch at my friends place and watched three self proclaimed breakfast skippers go back for second jars before noon.

Ingredients

• Rolled oats (1 cup): Use old fashioned rolled oats here, not quick oats, because they hold their texture beautifully through the overnight soak without turning to paste.
• Milk (1 cup): Whole milk gives the creamiest result but oat milk or almond milk work wonderfully if you want to keep it lighter.
• Plain Greek yogurt (1/2 cup): This adds tang and body to the oat base that plain milk alone cannot achieve.
• Chia seeds (2 tbsp): They thicken everything overnight and add a quiet little nutritional boost you will not even notice.
• Maple syrup or honey (2 tbsp for oats base): Maple syrup pairs more naturally with the coffee flavor, but honey works if that is what you have.
• Vanilla extract (1 tsp): A small amount goes a long way toward making this taste like an actual dessert.
• Strong brewed coffee (1/4 cup, cooled): Brew it the night before or use leftover morning coffee, just make sure it is cold before mixing so it does not cook the yogurt.
• Mascarpone cheese (1/4 cup): This is what transforms overnight oats into something that genuinely channels tiramisu.
• Additional Greek yogurt (2 tbsp for mascarpone layer): Lightens the mascarpone just enough so it is spreadable rather than dense.
• Additional maple syrup (1 tbsp for mascarpone layer): A touch more sweetness for the creamy topping to balance the slight bitterness of the cocoa.
• Unsweetened cocoa powder (2 tbsp for dusting): Dust this on just before serving so it sits on top like the real thing.
• Dark chocolate shavings (optional): Completely optional but they add a lovely little crunch and visual flourish.

Instructions

Build the oat base:

Combine the oats, milk, yogurt, chia seeds, maple syrup, and vanilla in a medium bowl and stir until everything is evenly distributed and the oats are fully submerged in liquid.

Add the coffee:

Pour the cooled coffee over the oat mixture and stir gently, letting the aroma hit you for a moment because that is when you know this is going to be good.

Divide into jars:

Spoon the oat mixture evenly between two jars or lidded containers, tapping them gently on the counter to settle the contents.

Whip the mascarpone layer:

In a small bowl, blend the mascarpone with the extra yogurt and maple syrup until completely smooth and lump free, tasting a tiny spoonful to check the sweetness level.

Layer it on:

Spoon the mascarpone mixture over the oats in each jar, spreading it into an even layer that covers the surface completely like frosting.

Refrigerate overnight:

Cover the jars tightly and tuck them into the fridge for at least six to eight hours while the oats soften and the coffee flavor seeps into everything.

Finish and serve:

Just before eating, dust the tops generously with cocoa powder through a fine sieve and scatter chocolate shavings over the top if you are feeling festive.

Save

There is something quietly magical about opening the fridge in the morning and finding breakfast already waiting, especially when it looks this beautiful under its layer of cocoa dust.

Choosing Your Coffee

Use whatever coffee you actually enjoy drinking because that flavor is going to be front and center in every bite. A dark roast or espresso gives you the most classic tiramisu flavor, but I have used cold brew on desperate mornings and it was still completely delicious. If you are sensitive to caffeine, decaf works perfectly here since the amount per serving is modest.

Making It Dairy Free

Swap the Greek yogurt for a thick coconut yogurt and replace the mascarpone with a vegan cream cheese or an extra spoonful of coconut cream blended until fluffy. The texture will be slightly different but the spirit of the dish stays intact, and honestly no one at my table has ever complained. Just check that your oats are certified gluten free if that matters to you.

Serving and Storage

These jars keep beautifully in the fridge for up to three days, making them perfect for batch prep on a Sunday evening. Hold off on the cocoa dusting and chocolate shavings until right before you eat them so the topping stays dry and visually striking rather than absorbing into the cream. If you are packing these to take to work, bring the cocoa in a tiny separate container and dust it at your desk for maximum impact.

• Layer crumbled espresso soaked ladyfinger pieces on top for a truly authentic tiramisu experience.
• Adjust the maple syrup amount based on how sweet your morning palate tends to be.
• Remember that the oats will thicken more the longer they sit, so add a splash of milk if eating on day three.

Save

Some mornings you deserve breakfast that feels like a small celebration, and this one asks almost nothing of you the night before. Set it up, sleep on it, and wake up to something wonderful.

Recipe FAQs

→ Can I make tiramisu overnight oats dairy-free?

Yes. Use plant-based milk such as almond or oat milk, swap the Greek yogurt for coconut yogurt, and replace mascarpone with a vegan cream cheese or blended soaked cashews. The texture and flavor will still be rich and satisfying.

→ How long do overnight oats last in the fridge?

Overnight oats stay fresh for up to 3 days when stored in airtight jars or containers. The oats may thicken over time, so you can stir in a splash of milk before eating to loosen the consistency.

→ Do I have to use strong brewed coffee?

Strong brewed coffee gives the most authentic tiramisu flavor, but you can substitute with espresso, cold brew concentrate, or even instant espresso powder dissolved in a small amount of water. For a caffeine-free version, try chicory root coffee or a coffee-flavored extract.

→ Can I eat the oats warm instead of chilled?

Absolutely. After the overnight soak, transfer the oats to a microwave-safe bowl and heat for about 60 to 90 seconds. The mascarpone layer is best added after warming rather than before, to preserve its creamy texture.

→ What can I use instead of mascarpone?

Ricotta cheese blended until smooth works well as a lighter alternative. Cream cheese thinned with a little yogurt is another option. For a protein boost, try mixing cottage cheese with a touch of vanilla and sweetener until creamy.

→ Are gluten-free oats suitable for this?

Yes, certified gluten-free rolled oats work perfectly. Just ensure all other ingredients, especially any add-ins or toppings, are also verified gluten-free to maintain safety for those with sensitivities or celiac disease.