Tiramisu Overnight Oats

My blender broke on a Tuesday morning and that small disaster sent me down a rabbit hole of no-cook breakfast experiments that lasted an entire month.

I brought jars of this to a weekend potluck brunch and three people pulled me aside to ask what bakery I had ordered from.

Ingredients

• Rolled oats (1 cup): Use old-fashioned rolled oats here, not quick oats, because they hold their texture beautifully after a full night of soaking.
• Milk (1 cup): Any milk works, but oat milk adds a particularly creamy sweetness that complements the coffee.
• Plain Greek yogurt (1/2 cup): This provides the tang that balances the sweetness and helps create that dense, satisfying texture.
• Chia seeds (2 tbsp): They thicken everything overnight and add a quiet boost of fiber and omega-3s.
• Maple syrup or honey (2 tbsp): Maple syrup feels more aligned with the Italian dessert vibe, but honey works if that is what you have.
• Vanilla extract (1 tsp): A small amount goes a long way toward making the oats taste like actual dessert.
• Strong brewed coffee, cooled (1/4 cup): Espresso is ideal if you have it, brewed strong and allowed to cool so it does not cook the yogurt.
• Mascarpone cheese (1/4 cup): This is what makes the topping feel luxurious and authentic rather than just another yogurt layer.
• Additional Greek yogurt for topping (2 tbsp): Blended into the mascarpone to lighten it slightly so it spreads easily.
• Additional maple syrup for topping (1 tbsp): Just enough to sweeten the mascarpone layer without making it cloying.
• Unsweetened cocoa powder (2 tbsp): Dust this on right before serving so it sits on top like the classic finish on a real tiramisu.
• Dark chocolate shavings (optional): A handful shaved over the top adds a pleasant bitterness and visual drama.

Instructions

Build the oat foundation:

In a medium bowl, stir together the oats, milk, yogurt, chia seeds, maple syrup, and vanilla until everything is evenly combined and the oats are fully submerged.

Wake it up with coffee:

Pour the cooled coffee over the oat mixture and fold it in gently, noticing how the color deepens to a warm amber as the coffee distributes through.

Fill the jars:

Divide the oat mixture between two jars or lidded containers, pressing down lightly so the surface is relatively even.

Whip the mascarpone layer:

In a small bowl, blend the mascarpone, the extra Greek yogurt, and the tablespoon of maple syrup until the mixture is completely smooth and cloud-like.

Top each jar:

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

Let time do the work:

Cover the jars tightly and tuck them into the refrigerator for at least six to eight hours, ideally overnight, so the oats soften and the flavors settle into something remarkable.

Finish and serve:

Just before eating, use a fine mesh sieve to dust cocoa powder generously over each jar and scatter chocolate shavings on top if you are feeling festive.

Save

One rainy Sunday I ate this standing at the kitchen counter still in my slippers and it honestly felt more comforting than any restaurant brunch I have ever had.

Making It Dairy-Free

Coconut yogurt is your best bet for replicating the richness of Greek yogurt without dairy, and vegan cream cheese stands in admirably for mascarpone if you cannot find a plant-based alternative.

Sweetener Swaps and Adjustments

Agave, date syrup, or even a mashed ripe banana all work beautifully in place of maple syrup, though each shifts the flavor profile slightly toward something fruitier or earthier.

Getting Creative with Layers and Toppings

Some mornings call for extra drama, and this recipe handles it well.

• Crumble espresso-soaked ladyfinger pieces between the oat and mascarpone layers for genuine tiramisu authenticity.
• Toasted hazelnuts or almonds scattered on top add crunch that contrasts with the creaminess.
• Always serve these chilled because even slightly warm oat milk layers lose their magic quickly.

Save

Some recipes earn a permanent spot in your rotation simply because they make an ordinary morning feel like a small celebration.

Recipe FAQs

→ Can I make tiramisu overnight oats dairy-free?

Yes, simply use plant-based milk, coconut yogurt, and a vegan cream cheese in place of mascarpone. The texture and flavor will be slightly different but still delicious.

→ How long do overnight oats last in the fridge?

Overnight oats can be stored in an airtight container in the refrigerator for up to 3 days. The oats will continue to soften over time, so the texture may become softer on day two and three.

→ Do I need to cook the oats beforehand?

No, rolled oats soften naturally as they soak in liquid overnight. The chia seeds also help thicken the mixture, so no cooking is required at any step.

→ Can I use instant coffee instead of brewed?

Instant espresso powder dissolved in a small amount of warm water works well and can provide an even stronger coffee flavor. Let it cool before adding to the oat mixture.

→ What type of oats work best for overnight oats?

Old-fashioned rolled oats are ideal because they soften nicely without becoming mushy. Steel-cut oats are too firm, and quick oats can become overly soft and paste-like.

→ Can I add espresso-soaked ladyfingers for authenticity?

Yes, crumbling espresso-soaked ladyfingers over the oats before serving adds a wonderful authentic tiramisu touch. Add them just before eating so they retain some texture.