These Funfetti Birthday Cake Overnight Oats taste like spooning up a bowl of cake batter, but they’re actually a filling breakfast that takes five minutes to stir together the night before.

The oats soak up the vanilla-almond milk and yogurt until soft and lush, and by morning you’ve got a cold, creamy jar dotted with colorful sprinkles. It’s a little morning celebration in a spoon.

Why These Oats Make Any Morning Feel Special

The almond extract is what gives the whole thing that uncanny birthday cake smell. It’s subtle enough that nobody will know exactly why it works, but one whiff and you’ll know it’s on theme.

The texture gets thick and creamy overnight, and the sprinkles soften just a little but don’t dissolve into a pink puddle. Every bite stays speckled and cheerful.

Ingredients

1/2 cup rolled oats: old-fashioned oats give the best chewy texture; instant turn to mush.
1/2 cup milk: any kind you like works, from dairy to oat milk.
1/4 cup plain Greek yogurt: adds tang and body; full-fat makes it extra rich.
1 tbsp maple syrup: or honey, or the liquid sweetener you keep on hand.
1/2 tsp vanilla extract
1/4 tsp almond extract: this is the cake batter flavor, don’t skip it.
Pinch of salt
1 1/2 tbsp rainbow sprinkles, plus extra for topping: jimmies hold their shape best; avoid nonpareils that bleed.

Variations / Substitutions

Protein boost: Swap the maple syrup for 2 tbsp vanilla protein powder and add an extra splash of milk.
Dairy-free: Use oat milk and a thick coconut yogurt.
Strawberry cake: Fold in crushed freeze-dried strawberries for a pink-flecked berry cake version.
Extra crunch: A spoonful of white chocolate chips or toasted almonds on top gives a nice contrast.

Party Punch goes great with these overnight oats when you want something to sip.

How To Make Funfetti Birthday Cake Overnight Oats

Step 1: Whisk the Wet Ingredients

In a jar or small bowl, whisk together the 1/2 cup milk, 1/4 cup Greek yogurt, 1 tablespoon maple syrup, 1/2 teaspoon vanilla, 1/4 teaspoon almond extract, and the pinch of salt until smooth.

Step 2: Fold in the Oats and Sprinkles

Stir the 1/2 cup rolled oats and 1 1/2 tablespoons of the sprinkles into the liquid until everything is evenly distributed and the oats are fully coated.

Step 3: Stir and Top in the Morning

Cover and refrigerate for at least 6 hours, or overnight. In the morning, give it a good stir. The oats will be thick and creamy. Add a splash of milk if you like a looser texture, then scatter a few extra sprinkles on top and dig in.

Tips for the Brightest, Creamiest Oats

Jimmies stay speckled throughout. Nonpareils, the tiny round ones, tend to bleed and turn the oats a muddy color.
If the oats are too thick after chilling, stir in a tablespoon of milk at a time until it’s the consistency you like.
You can make a few at once. They keep well for up to 4 days, so weekdays feel a lot easier.
The almond extract is the flavor backbone, but it can be strong. Stick to 1/4 teaspoon; a heavy pour will overpower everything.

Scale a batch for the week:

Servings	Rolled oats	Milk	Greek yogurt	Maple syrup
1	1/2 cup	1/2 cup	1/4 cup	1 tbsp
2	1 cup	1 cup	1/2 cup	2 tbsp
4	2 cups	2 cups	1 cup	1/4 cup

Storing Leftover Oats

Refrigerate: The oats stay fresh in a sealed container for up to 4 days. They’ll thicken as they sit, so you may want an extra splash of milk when you stir.
Serve Cold: These are meant to be eaten straight from the fridge. Warming them for a few seconds in the microwave is okay, but the sprinkles will melt and the texture will thin.

Frequently Asked Questions

Are these gluten-free?

Only if you use certified gluten-free rolled oats. Oats themselves are naturally gluten-free, but cross-contact during processing is common.

Can I use steel-cut oats?

No, they won’t soften enough overnight. Stick with rolled oats for that creamy no-cook texture.

Can I skip the almond extract?

You can, but you’ll lose the birthday cake flavor. Replace it with an extra 1/2 teaspoon vanilla and maybe a drop of butter extract if you have it.

My oats were too runny the next morning. What happened?

Some varieties of rolled oats absorb liquid differently. Next time, reduce the milk by a tablespoon or two, or stir in a spoonful of chia seeds to help thicken.