If there’s one breakfast that’s guaranteed to make your morning feel like a party, it’s Birthday Cake Overnight Oats. Packed with playful rainbow sprinkles and those classic cake flavor notes, this recipe delivers a craveable blend of nostalgic sweetness and nourishing, long-lasting energy. Whether you’re prepping for a special occasion or simply want a reason to smile before you even get out of bed, this cheerful jar combines wholesome oats with a creamy base and a hint of vanilla-almond magic. It’s as much fun to make as it is to eat, and it just might become a new joyful staple in your breakfast lineup.

Ingredients You’ll Need
-
Rolled Oats:
½ cup
Unsweetened Almond Milk:
½ cup
Greek Yogurt (plain or vanilla):
¼ cup
Maple Syrup or Honey:
1 tablespoon
Vanilla Protein Powder:
1 tablespoon (optional)
Vanilla Extract:
½ teaspoon
Almond Extract:
¼ teaspoon (optional for cake flavor)
Chia Seeds:
1 tablespoon
Rainbow Sprinkles:
1 teaspoon (plus more for topping)
How to Make Birthday Cake Overnight Oats
Step 1: Grab Your Jar and Gather Ingredients
Start by reaching for a mason jar or any airtight container—something you can easily shake or stir. Lay out all your ingredients so you don’t miss a festive step, and get ready to assemble this colorful, cake-inspired breakfast.
Step 2: Mix Everything Together
Add the rolled oats, almond milk, Greek yogurt, sweetener, protein powder (if you’re using it), vanilla extract, almond extract, chia seeds, and a teaspoon of those delightful rainbow sprinkles right into your jar. Give everything a good stir to combine, making sure the oats and chia aren’t clumping and the sprinkles are scattered throughout for even cheerfulness!
Step 3: Chill Overnight
Once everything’s nicely mixed, cover your jar and pop it in the refrigerator. Let your Birthday Cake Overnight Oats do their magic as they soak for at least 4 hours, but letting them sit overnight brings out the best creamy, soft texture.
Step 4: Morning Finishing Touches
In the morning, give your oats another quick stir—if they’re too thick for your liking, simply add a splash more milk and stir again. Now comes the best part: top with a handful of extra sprinkles, a swirl of yogurt, or even a little dollop of whipped cream for that birthday-cake-in-a-jar moment.
How to Serve Birthday Cake Overnight Oats

Garnishes
This is where the personality of your breakfast really shines! Extra rainbow sprinkles are a no-brainer, but you could also top your oats with a swirl of Greek yogurt, a cherry, or a tiny colorful candle if you’re celebrating. A pinch of crushed freeze-dried strawberries or some mini white chocolate chips can also dial up the fun.
Side Dishes
If you’re after a more substantial breakfast or a brunch vibe, try pairing your Birthday Cake Overnight Oats with fresh fruit like sliced bananas, juicy berries, or even a crisp apple. A cup of rich hot coffee or a creamy latte complements the sweetness beautifully, and a side dish of scrambled eggs adds a finishing touch of balance to your morning lineup.
Creative Ways to Present
Think outside the jar! Layer your oats in a clear parfait glass for a dessert-inspired breakfast, or divide between mini jars for a brunch party. You can even serve as a topping for pancakes and waffles, or go all out and create an overnight oats “bar” where everyone builds their own with toppings and extra garnishes. The more playful, the better!
Make Ahead and Storage
Storing Leftovers
Your Birthday Cake Overnight Oats will stay fresh and creamy in the fridge for up to 3 days. Keep them tightly sealed, and don’t add too many wet toppings until serving, so they keep that perfect texture. If you made a double batch, just portion out into separate jars for grab-and-go breakfasts all week long.
Freezing
While overnight oats can technically be frozen, they tend to lose some of their creamy appeal once thawed, and the oats may go a bit mushy. If you do try freezing, store in airtight portions and thaw in the fridge overnight. For best taste and texture, though, fresh is the way to go with Birthday Cake Overnight Oats.
Reheating
These oats are designed to be enjoyed chilled, creamy, and straight from the fridge, but if you prefer them warm, just microwave (without the sprinkles) in 30-second intervals, stirring between each, until gently heated. Stir in the sprinkles after warming for the best results—they’ll keep their color and crunch!
FAQs
Can I make Birthday Cake Overnight Oats dairy-free?
Absolutely! Just swap in your favorite plant-based yogurt and non-dairy milk. The results will be just as rich and flavorful with an extra-creamy plant-based twist.
How sweet are these overnight oats?
The base recipe is lightly sweet—think classic cake batter, but not over the top. You can easily adjust the maple syrup or honey to fit your preference, or mix in extra vanilla if you like a stronger cake flavor.
What if I don’t have protein powder?
No worries! The protein powder is totally optional and these oats are still delicious and satisfying without it. Greek yogurt provides plenty of protein on its own, so just skip it if that’s not your thing.
Are there other fun mix-ins I can add?
Definitely! Try folding in chopped nuts, mini white chocolate chips, or a swirl of strawberry or raspberry jam for a fruity-cake twist. Crushed cookies or granola also make for an indulgent topping if you want extra crunch.
Can I prep Birthday Cake Overnight Oats for a brunch party?
These oats are a huge hit for celebrations! Assemble in mini jars and set up a toppings bar with sprinkles, whipped cream, fruit, and syrups so everyone can custom-build their own birthday breakfast masterpiece.
Final Thoughts
Birthday Cake Overnight Oats are truly a breakfast worth waking up for—whimsical, nourishing, and unfailingly joyful, this recipe is perfect for kids and kids-at-heart alike. Give it a whirl the next time you want something quick, magical, and just a little bit special. Here’s to starting your morning with sprinkles and smiles!
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Birthday Cake Overnight Oats Recipe
- Total Time: 5 minutes (plus chilling)
- Yield: 1 serving
- Diet: Vegetarian
Description
Indulge in a festive and nutritious breakfast with these Birthday Cake Overnight Oats. Packed with the flavors of a classic birthday cake, these oats are a fun and delicious way to start your day.
Ingredients
Rolled Oats:
½ cup
Unsweetened Almond Milk:
½ cup
Greek Yogurt (plain or vanilla):
¼ cup
Maple Syrup or Honey:
1 tablespoon
Vanilla Protein Powder:
1 tablespoon (optional)
Vanilla Extract:
½ teaspoon
Almond Extract:
¼ teaspoon (optional for cake flavor)
Chia Seeds:
1 tablespoon
Rainbow Sprinkles:
1 teaspoon (plus more for topping)
Instructions
- Combine Ingredients: In a mason jar or airtight container, mix oats, almond milk, Greek yogurt, maple syrup, protein powder, vanilla extract, almond extract, chia seeds, and sprinkles.
- Refrigerate: Cover and refrigerate for at least 4 hours or overnight.
- Finish and Serve: In the morning, stir and adjust consistency with more milk if needed. Top with sprinkles, yogurt, or whipped cream.
Notes
- To make it dairy-free, use plant-based yogurt.
- Add crushed freeze-dried strawberries or white chocolate chips for a twist.
- Best enjoyed within 3 days.
- Prep Time: 5 minutes
- Cook Time: 0 minutes
- Category: Breakfast
- Method: No-Cook
- Cuisine: American
Nutrition
- Serving Size: 1 jar
- Calories: 280
- Sugar: 9g
- Sodium: 90mg
- Fat: 9g
- Saturated Fat: 2g
- Unsaturated Fat: 6g
- Trans Fat: 0g
- Carbohydrates: 35g
- Fiber: 6g
- Protein: 14g
- Cholesterol: 5mg