… because today is someone‘s birthday somewhere. I have made protein bars like this before, but this recipe takes the cake (pun intended)! The texture is more dense than “cakey,” with a soft crumb and thick, creamy frosting. The flavor tastes just like real birthday cake with sugar, vanilla, and sprinkles. SO GOOD. They didn’t last more than a day at my house! Hard to believe they are low in fat and carbs, gluten-free, and protein-rich.
Celebrate every bite with these delicious bars —soft, sweet, and packed with protein for a guilt-free treat that tastes just like a party. Bursting with classic vanilla cake flavor and colorful sprinkles, these bars deliver a satisfying balance of sweetness and strength support. Perfect for post-workout fuel, an on-the-go snack, or a healthier dessert, they are made to keep you energized while satisfying your cake cravings – no candles required.
This recipe is where nostalgic fun meets powerful nutrition. Inspired by the classic flavor of vanilla birthday cake and finished with a festive sprinkle crunch, these bars deliver a soft, chewy texture and a rich, cake-like sweetness that feels indulgent, yet supports your health goals.
Packed with high-quality protein to help fuel muscle recovery, curb cravings, and keep you feeling full and energized, these bars are perfect for post-workout refueling, mid-afternoon pick-me-ups, or a smarter dessert alternative. Each bite delivers the joyful taste of celebration without the sugar crash that comes with traditional cake.
Whether you are chasing fitness goals, managing busy days on the go, or simply looking for a healthier way to satisfy your sweet tooth, Birthday Cake Protein Bars bring you the best of both worlds – fun, flavor, and functional nutrition all in one delicious, convenient snack. No forks, no candles, just pure celebration in every bite.
Why you will love this frosted protein bar recipe:
They taste like a real birthday cake
No baking required
They are gluten-free
Made with clean ingredients
They are good for your body and your soul.
Why these birthday cake protein bars are better than store bought:
Cost-Effective: One of the biggest advantages of making your own protein bars is the cost savings. Store-bought protein bars can be quite expensive and by making your own, you can significantly reduce the cost while still getting a delicious and nutritious snack.
Clean Ingredients: When you make your own healthy bars, you have complete control over the ingredients that go into them. Store bought bars often contain unnecessary ingredients like high-fructose corn syrup, unhealthy hydrogenated oils, loads of sugar, artificial additives, preservatives and sweeteners. By making your own, you can avoid these unhealthy additives and stick to nourishing, whole-food ingredients that you choose yourself so you know exactly what goes into them.
Customizable: Homemade protein bars can be tailored to your specific dietary needs and preferences. Whether you are looking for vegan, nut-free, gluten- free or low-sugar options, you can easily adjust the recipe to suit your requirements. You can also experiment with different flavors and add-ins to keep things interesting.
Higher Protein Content: Homemade protein bars can be packed with protein without the fillers and lower-quality protein sources often found in commercial bars. With over 20g of protein per bar, these DIY bars provide a substantial protein boost to support your fitness and nutritional goals.
Reader review: “OMG I’m so obsessed with these right now. I look forward to eating one after my workout each day. I thought I liked a number of well-known brand name protein bars, but now that I’ve made these I don’t even want to go back to buying protein bars because they are so inferior. I also feel really good knowing and seeing exactly what goes into them”.
If you have been searching for the perfect snack that is healthy, delicious, and ridiculously easy to make, you have just found it. Say hello to your new Frosted Birthday Cake Protein Bars. The ultimate snack for a quick grab-and-go energy boost, a post-workout refuel, or a guilt-free dessert that tastes like cake without the sugar crash.
Frosted Birthday Cake Protein Bars
Ingredients
- 1 1/4 cups oat flour (oats blended to a flour)
- 1/2 cup cashew (or any other nut or seed) butter
- 1/2 cup desiccated coconut
- 1/4 cup protein or collagen peptides powder, plain or vanilla
- 1/4 cup honey or maple syrup
- 2-4 tablespoons any milk (if needed)
- 1 teaspoon vanilla extract (if yogurt and protein powder is unflavoured)
- 1/4 cup rainbow sprinkles
Creamy Yogurt Frosting
- 1 cup thick Greek-style yogurt, plain or vanilla
- 1/4 cup coconut oil, melted
- 1/4 cup honey or maple syrup
- 1 teaspoon vanilla extract
- 2 tablespoons rainbow sprinkles
Instructions
- Line an 7×5-inch baking pan with parchment paper and set aside.To a medium bowl, add all ingredients and mix well to combine. If the mixture seems a little dry add milk, a tablespoon at a time or if it seems too wet add oat, flour or more protein powder until it comes together in a texture similar to cookie dough.Taste test and add more honey or vanilla extract if you think it needs it.Add the protein bar mixture to your lined pan and spread out evenly with a spatula or back of a spoon.Place in fridge while you make the creamy yogurt frosting.
Creamy Yogurt Frosting
- Add all ingredients except sprinkles to a medium bowl and whisk until combined. Scoop out onto top of protein bars and smooth out evenly with a spatula or back of a spoon. Sprinkle over the remaining sprinkles.Chill in the refrigerator or freezer for at least 2 hours. Slice into 8-10 bars or more smaller squares.Store in fridge up to 1 week of freezer for up to 3 months.
If you are looking for more delicious, healthy, protein-rich, no bake desserts and treats to help you reach your health, wellness and fitness goals, you will love my collection here: Blended Bites
