Tiramisu Overnight Oats

My sister came home from Rome last spring, raving about tiramisu at some tiny café near the Trevi Fountain. I listened, half-absorbed, while stirring my usual bland oatmeal. That night it hit me: why not merge the two worlds? Now these jars live in my fridge, and honestly, opening one at 6 AM feels illicitly luxurious.

I brought these to a weekend brunch with friends, skeptical that grown adults would get excited about oatmeal. They demolished them. Someone actually asked for the recipe before we even cleared the table, and now my group chat is blowing up with pictures of everyone's tiramisu oat experiments.

Ingredients

• Old-fashioned rolled oats: They hold their texture better than instant oats overnight, giving you something to actually chew on instead of mush.
• Milk (dairy or plant-based): I've used almond, oat, and regular milk—all work beautifully, though oat milk adds a subtle creaminess that pairs perfectly with coffee.
• Plain Greek yogurt: The tang cuts through the sweet maple syrup and mimics the slight acidity of mascarpone in traditional tiramisu.
• Chia seeds: These little guys thicken everything up while you sleep, creating that pudding-like consistency that makes overnight oats so satisfying.
• Maple syrup or honey: Start with two tablespoons, but taste your coffee mixture first—some brews are naturally bitter and need the extra sweetness.
• Pure vanilla extract: Don't skip this. It bridges the gap between the earthy oats and the bold espresso flavors.
• Strong brewed espresso or coffee: Brew it extra strong since it will mellow out overnight. I once made it with regular drip coffee and the flavor disappeared completely.
• Mascarpone cheese: If you can't find it or want something lighter, cream cheese works in a pinch, though the texture becomes slightly denser.
• Cocoa powder: Unsweetened Dutch-processed cocoa gives that deep, dark chocolate flavor without adding sugar.
• Dark chocolate shavings: Totally optional but that little crunch on top transforms the whole experience from good to can't-stop-eating.

Instructions

Mix your oat base:

Combine oats, milk, yogurt, chia seeds, maple syrup, and vanilla in a medium bowl. Stir thoroughly until the chia seeds are evenly distributed—otherwise they clump together into little gelatinous blobs that nobody wants to encounter.

Whisk the tiramisu layer:

In a small bowl, beat together espresso, mascarpone, cocoa powder, and maple syrup until completely smooth. Take your time here—lumps of mascarpone in the final jars are disappointing.

Layer it up:

Spoon half the oat mixture into two jars, then divide the tiramisu layer between them. I use the back of a spoon to gently spread the coffee layer so it doesn't mix into the oats too much.

Add the remaining layers:

Top with the rest of the oat mixture, then finish with whatever tiramisu layer remains. Don't worry if the layers look messy—that beautiful marbled effect happens overnight anyway.

Let the magic happen:

Cover tightly and pop them in the fridge for at least 8 hours. I've eaten them after 4 hours in a pinch, but the oats really need that full night to soften properly.

The morning reveal:

Dust with cocoa powder right before serving—if you do it the night before, the moisture will make the cocoa turn into a weird paste. Chocolate shavings go on last for that Instagram-worthy finish.

Pin It

My partner, who swears they don't like oatmeal, ate three servings in one week. There's something about the combination of cold creamy oats and that hit of espresso that just works. Now they're the ones reminding me to prep jars on Sunday nights.

Making It Yours

I've experimented with adding a splash of coffee liqueur to the tiramisu layer for weekend versions, though obviously that's more of a dessert situation. A pinch of cinnamon in the oat base adds warmth that complements the coffee beautifully without overpowering it.

Storage Secrets

These keep perfectly for two days, maybe three if you must. After that, the oats start getting mushy and the cocoa flavor fades. I've never had them last longer than 48 hours in my house anyway. Glass jars work best for layering visibility, but any container with a tight lid will do the job.

Serving Ideas

Serve these with a spoonful of whipped cream on top for真正的 indulgence occasions, or crumble a biscotti over it for that authentic Italian café vibe. I've also stirred in a spoonful of ricotta instead of Greek yogurt when I wanted something even creamier.

• Let the jars sit on the counter for 10 minutes before eating if you can't handle cold breakfast straight from the fridge.
• A tiny pinch of sea salt on top somehow makes the chocolate taste more intense.
• Double the recipe and meal prep for the whole week—your future self will thank you.

Pin It

Waking up to a jar of these feels like treating yourself without actually trying. The best breakfasts are the ones that make you feel taken care of before your day even begins.

Recipe FAQs

→ Can I make these oats without espresso?

Yes, you can substitute the espresso with strong brewed coffee or even decaffeinated coffee if you prefer to avoid caffeine. The coffee flavor is essential for the authentic tiramisu taste, but you can adjust the strength to your preference by using less coffee or adding more milk to the mixture.

→ How long do these oats stay fresh in the refrigerator?

These overnight oats are best enjoyed within 2 days of preparation. The oats will continue to soften and absorb the liquid over time, so the texture will be creamier on the second day. For optimal freshness and texture, consume within 48 hours of making.

→ What can I use instead of mascarpone cheese?

Cream cheese makes an excellent substitute for mascarpone and will provide a similar creamy texture and tangy flavor. For a lighter version, Greek yogurt can replace the mascarpone entirely. Vegan alternatives include dairy-free cream cheese or coconut yogurt, though the flavor profile will be slightly different.

→ Can I use quick oats instead of old-fashioned rolled oats?

Old-fashioned rolled oats are recommended for the best texture as they hold up well during overnight soaking. Quick oats will become much softer and may result in a mushier consistency. Steel-cut oats are not recommended as they remain too firm even after extended soaking.

→ Is this breakfast suitable for meal prep?

Absolutely! These overnight oats are perfect for meal prep. You can assemble 2-3 jars at the beginning of the week and have grab-and-go breakfasts ready. Just ensure you're consuming them within 2 days for the best texture and freshness. The layers actually develop more flavor as they sit together.

→ Can I make this version vegan?

Yes, simply use plant-based milk like oat or almond milk, coconut yogurt instead of Greek yogurt, and vegan cream cheese or a cashew-based alternative in place of mascarpone. Maple syrup is already vegan-friendly, and you can use certified vegan dark chocolate for the toppings.