Tiramisu Overnight Oats

My sister called me at midnight last Tuesday, half laughing and half desperate, asking if I had anything sweet that did not require turning on the oven.

I threw this together in two jars while still in my slippers, and by morning my sister was texting me a photo of her empty jar with the caption life changing.

Ingredients

• Old fashioned rolled oats (1 cup): They soak up the coffee and milk without turning to mush, giving you that perfect chewy bite.
• Milk (1 cup, dairy or plant based): Whole milk makes it creamier, but oat milk works beautifully if you want to keep it vegan.
• Brewed espresso or strong coffee (2 tbsp, cooled): Just enough to whisper tiramisu without keeping you awake all night.
• Chia seeds (1 tbsp): These thicken everything overnight so the texture becomes almost pudding like.
• Maple syrup or honey (1 to 2 tbsp): Start with one tablespoon and taste before adding more, especially if your mascarpone is already sweet.
• Pure vanilla extract (1 tsp): It bridges the coffee and the creamy layers like a quiet mediator.
• Mascarpone cheese (quarter cup): A little goes a long way and makes the whole thing taste like actual tiramisu.
• Plain Greek yogurt (3 tbsp): It lightens the mascarpone so the layer is fluffy rather than dense.
• Dark chocolate shavings or chips (2 tbsp): Use good chocolate here because it is sitting right on top and there is nowhere to hide.
• Unsweetened cocoa powder (2 tsp): A final dusting that makes it look like it came from a bakery case.

Instructions

Build the oat base:

Stir oats, milk, espresso, chia seeds, maple syrup, and vanilla in a bowl until everything is evenly combined and the oats are fully submerged.

Divide into jars:

Spoon the mixture into two jars or containers, dividing it as evenly as you can manage without obsessing.

Whisk the mascarpone layer:

Beat mascarpone, yogurt, and sweetener together until completely smooth with no lumps hiding in the corners.

Layer it up:

Spoon the mascarpone mixture over the oats in each jar, spreading it gently to create a distinct creamy blanket on top.

Chill overnight:

Cover both jars tightly and tuck them into the fridge for at least eight hours so the oats can work their magic.

Finish with flair:

In the morning, scatter chocolate shavings and cocoa powder over the top, adding ladyfinger pieces or an extra coffee drizzle if you are feeling indulgent.

Serve your way:

Eat it layered for the full tiramisu illusion or stir everything together for one creamy, coffee flecked bowl of happiness.

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I brought a jar to my coworker who swears she hates breakfast, and she now asks me for the recipe every single Monday.

Making It Your Own

A splash of coffee liqueur in the oat base turns this from a morning meal into something that would feel right at home at a dinner party.

Keeping It Simple for Dietary Needs

Swap the mascarpone for thick coconut yogurt and use plant milk to make it completely vegan without losing any of the luxury.

Storage and Make Ahead Notes

These jars keep beautifully in the fridge for up to three days, which means you can prep several at once and grab one on your way out the door.

• Always use airtight lids or the oats will absorb every smell in your fridge, including last nights garlic chicken.
• Hold off on the chocolate and cocoa toppings until right before eating so they stay fresh and pretty.
• Give the jar a good look before eating, and if the oats seem too thick, just stir in a splash of milk to loosen things up.

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Some mornings deserve dessert for breakfast, and this jar of coffee soaked, chocolate topped comfort is the best excuse I know.

Recipe Questions & Answers

→ Can I make tiramisu overnight oats without coffee?

Yes, you can substitute the espresso with strong chai tea, malted milk, or even chocolate milk for a caffeine-free version. The coffee flavor is key to the tiramisu taste, but the oats will still be delicious with alternative liquids.

→ How long do tiramisu overnight oats last in the fridge?

They stay fresh for up to 3 days when stored in airtight jars. The oats may soften further over time, and the flavors will continue to develop. Add the chocolate toppings just before serving for the best texture.

→ What can I use instead of mascarpone cheese?

Cream cheese works as a direct substitute, though it adds a slight tang. For a dairy-free option, try thick coconut yogurt or blended silken tofu sweetened with maple syrup. Ricotta cheese whipped until smooth is another excellent alternative.

→ Do I need to cook the oats before refrigerating?

No cooking is required. Old-fashioned rolled oats soften naturally as they absorb the milk and coffee overnight. The chia seeds help thicken the mixture while adding omega-3 fatty acids and fiber.

→ Can I use instant oats instead of rolled oats?

Instant oats will work but will become much softer and mushier after soaking overnight. For the best texture with a pleasant chew, stick with old-fashioned rolled oats. Steel-cut oats are not recommended as they require cooking.

→ Is this breakfast suitable for meal prep?

Absolutely. Prepare two jars at once and keep them refrigerated for grab-and-go mornings throughout the week. Layer the mascarpone mixture on top of the oats before chilling, and add toppings when ready to eat.