This Birthday Cake Protein Shake is my current obsession — it’s sweet, festive, and gives me that “cake without the guilt” kind of feeling. It’s super customizable depending on what you like or have on hand, but in my opinion, sprinkles are not negotiable. They just make it fun — and honestly, who doesn’t need a little confetti in their day?
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Why You’ll Love Birthday Cake Protein Shake
✔ Simple and cheerful – Because it tastes like dessert but fuels you like a meal!
✔ Zero morning effort – Perfect when you’re rushing to catch a 6 AM flight.
✔ Celebration in a cup – Sweet, creamy, and full of protein.


Tips for the Best Birthday Cake Protein Shake
✔ Blend long enough – Let it go for 1-2 minutes to get that thick, milkshake-like texture.
✔ Customize it – Toss in sprinkles for fun, a few frozen berries, or 1/2 of a frozen banana.
✔ Serve right away – It’s best enjoyed fresh before the shake separates.
FAQs
Yes! Vanilla protein powder works best for that birthday cake flavor, but you can use any kind you love — whey, plant-based, or collagen.
Add more ice or a frozen banana. You can also blend in a little Greek yogurt for extra creaminess.
Totally! Just skip the protein powder if you prefer and make it as a fun “birthday milkshake” instead with frozen berries or a banana.
I have been using the “Ninja Blender” for years.
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Birthday Cake Protein Shake
Description
Equipment
Ingredients
- 1 scoop vanilla protein powder
- 3/4 cup unsweetened milk of choice
- 1/2 cup Greek yogurt for creaminess and extra protein
- 1 Tablespoon cashew butter optional but adds richness
- 1/2 Teaspoon vanilla extract
- ice cubes as needed
- 1/4 cup frozen berries, or 1/4-1/2 of a frozen banana
- sprinkles for topping a must for birthday vibes!
- Optional chopped nuts for topping
Instructions
- Add all ingredients to a blender.
- Blend until smooth, thick, and creamy. If the mixture feels too thick, just add a splash of liquid and mix until smooth.
- Pour into a glass, top with sprinkles and chopped nuts (optional), and enjoy your little celebration-in-a-cup!
