Birthday Cake Overnight Oats (High Protein!)

These Birthday Cake Overnight Oats are a delicious, high-protein and high-fiber breakfast – complete with sprinkles. They’re great for meal prep!

Why This Recipe is SO Good:

• They taste like birthday cake! Y’all know I love an easy recipe, so I love using Clean Simple Eats’ Cake Batter Protein Powder (not a partnered post, I promise!). But I’ve included a hack to make them still taste like cake if you only have vanilla protein powder.
• High Protein: these overnight oats pack 38 grams of protein per serving!
• High in Fiber: this breakfast is loaded with fiber-rich ingredients, like oats, chia seeds, and flax seeds, giving 8 grams of fiber per breakfast!
• Great for Meal Prep: with just a few minutes of prep, you’ve got a balanced, delicious breakfast ready to grab and go. Plus the recipe is easy to double, triple, or quadruple to give you breakfast for a few days!

Ingredients Needed:

• Oats: Use old-fashioned oats.
• Greek Yogurt: plain Greek yogurt adds protein, creaminess, and a little tang.
• Chia & Flax Seeds: these seeds add fiber, healthy fats, and helps create the perfect overnight oats consistency.
• Milk: use whichever milk you prefer to drink. I love using an ultra-filtered milk for another boost of protein.
• Protein Powder: if you can, use a cake batter/ birthday cake flavored protein powder for easy birthday flavor vibes (I love Clean Simple Eats’ version!). If not, you can use vanilla, and see my hack below to still get cake batter vibes!
• Sprinkles: obviously essential for birthday cake overnight oats! I use Watkins Dye-Free Sprinkles.

How to Make Birthday Cake Overnight Oats

1. Add all ingredients (except sprinkles) to a jar or bowl and stir to combine (make sure there are no chia seed clumps!). Cover the container and place in the fridge overnight, or at least 4 hours.
2. Before serving, give the oats a stir. The oats will absorb much of the liquid, and different protein powders can affect absorption, too, so add an extra splash of milk if needed.
3. Once oats are at your preferred consistency, stir in the sprinkles then serve and enjoy.

Expert Tips & Variations

• Gluten-Free: as long as your protein powder and sprinkles have no gluten-containing additives, you’re good! Grab certified gluten-free oats if you need them!
• Dairy-Free: use a plant-based protein powder and milk, and also use your favorite dairy alternative Greek-style yogurt.
• No Added Sugar: I like using Greek yogurt that’s unsweetened, then just look for protein powder that has no added sugar, or use your favorite non-nutritive sweetener. You can skip the sprinkles or use these sugar-free sprinkles instead!
• Do a Double Stir: because this mixture makes a thicker overnight oats, with the Greek yogurt and protein powder, you shouldn’t experience the issue of oats or seeds settling at the bottom. But if you do, wait 5 minutes after stirring, then stir again once more before refrigerating.

How to Make Without Cake Batter Protein Powder:

To make with vanilla protein powder, you’ll want to add 1/4 teaspoon each of vanilla extract and almond extract, plus a tiny 1/8 teaspoon of butter extract. Alternatively, you can also find cake batter extract – use 1/4 to 1/2 teaspoon, depending on the brand (start small, you can always add more!).

If you’re making without any protein powder, I recommend using the extracts above, plus also adding your preferred sweetener of choice, since the sweetness of these oats came from the protein powder.

FAQs

My oats are too thick/ thin, what do I do?

Change the texture by changing the amount of liquid. I like my oats on the thicker side as a personal preference, but also because it’s easier to adjust the consistency when they’re starting out thicker. Just add a little extra milk in the morning before eating, if your oats are too thick for your liking!

Also note that different protein powders can affect the absorption differently, too, so you may need to add more or less milk based on your personal protein powder used.

Do you eat overnight oats warm or cold?

Overnight oats are typically eaten cold, but you can enjoy them warm, too. Heat your overnight oats (remove any metal lids!) for 30-60 seconds, then stir. Continue adding 10-15 seconds at a time, then stirring, until your overnight oats reach your desired temperature.

Are overnight oats safe to eat since you’re not cooking the oats?

Yes. You may hear concern over the phytic acid in oats, as it’s sometimes called an “anti-nutrient,” since phytic acid can slightly inhibit the absorption of some nutrients (iron, zinc, and calcium). But this effect is mostly limited to what you’re eating at that current meal.

Additionally, research has shown us that phytic acid is rarely a concern if you’re eating enough and an overall balanced diet.

Check out more info in this article, “Are Overnight Oats Healthy?”

Shop This Recipe

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All of my favorites can be found on my Amazon storefront, including a whole page dedicated to my Meal Prep Essentials!

• Clean Simple Eats Protein Powder
• Watkins Dye-Free Sprinkles
• 10 Ounce Glass Jars
• 16 Ounce Glass Jars
• Gold & Wood Measuring Cups & Spoons
• Cookie Scoop Set

More Overnight Oats Recipes You’ll Love:

• Cosmic Brownie Overnight Oats
• Chocolate Protein Overnight Oats
• Mango Overnight Oats
• Black Forest Overnight Oats
• Coconut Cream Pie Overnight Oats
• Chocolate Chip Overnight Oats
• Apple Pie Overnight Oats

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