If you love the nostalgic flavour of birthday cake but want a healthier way to enjoy it any day of the year, these no-bake Birthday Cake Oat Protein Bars are about to become your new favourite treat. Soft, chewy, and dotted with colourful sprinkles, they capture everything you love about cake batter flavour – without refined sugar, flour, or baking.
These bars are built on a simple oat base that creates the perfect chewy texture. Oat four provide fibre and slow-release energy, making these bars just as suitable for breakfast on busy mornings as they are for an afternoon snack. Oats also pair beautifully with vanilla, giving that classic birthday cake flavour its familiar warmth.
What sets these bars apart from traditional cake-style snacks is the addition of protein powder. By blending protein powder directly into the base, these bars become a balanced, satisfying option that supports muscle recovery and keeps you full for longer. Unlike sugary cake slices that leave you crashing an hour later, these protein bars provide steady energy and real nourishment.
To recreate that unmistakable birthday cake flavour, this recipe relies on vanilla extract, a hint of almond extract, and naturally sweet ingredients like maple syrup or honey. The result is sweet but not overwhelming – rich enough to feel indulgent, yet light enough to enjoy regularly. A pinch of salt helps balance the sweetness and enhances the vanilla notes.
Of course, no birthday cake is complete without sprinkles. Not only do they add a pop of colour, but they also bring that joyful, celebratory feeling that makes these bars so fun to eat. You can use classic rainbow sprinkles or naturally coloured options depending on your preference.
One of the best things about this recipe is how quick and easy it is to make. There is no oven, no complicated steps, and no waiting for things to cool. Everything comes together in one bowl, gets pressed into a pan, and then sets in the fridge. It’s the perfect recipe for meal prep, last-minute treats, or making something special without the effort of baking.
These bars store beautifully in the fridge and freezer, making them ideal for having on hand whenever a sweet craving hits. They are sturdy enough to pack in lunchboxes, yet soft and chewy enough to feel like a dessert. Whether you are celebrating a birthday, fuelling a workout, or just want a little fun in your snack routine, these bars deliver.
If you are someone who believes healthy eating should still feel enjoyable, these Birthday Cake Oat Protein Bars prove that you don’t need an occasion to enjoy birthday cake flavour. Sometimes, a sprinkle-filled protein bar is reason enough to celebrate. ⚡
Birthday Cake Oat Protein Bars
Ingredients
- 1 1/2 cups oat flour (oats blended to a flour)
- 1/2 cup almond flour
- 2 scoops vanilla protein powder
- 1/4 cup maple syrup or honey
- 1/4 cup milk of choice
- 3 tablespoons melted coconut oil or butter
- 1 teaspoon vanilla extract
- 1/4 teaspoon almond extract (optional, but recommended)
- 3 tablespoons rainbow sprinkles
Toppings Optional
- White or dark chocolate drizzle
- Chocolate chips
- Shredded coconut
- Chopped nuts
Instructions
- Line a 7 x 5-inch loaf pan or dish with parchment paper on the bottom and sides leaving some overhanging to act as a handle to get the bars out easier for cutting.In a mixing bowl, combine oat flour, almond flour and protein powder.Add maple syrup, melted coconut oil, milk, vanilla and almond extract.Mix until a thick, slightly sticky dough forms.Press the mixture into the prepared dish and smooth the top.Sprinkle with sprinkles.Refrigerate for at least 2–3 hours, or until fully set.Slice into 8-10 bars and enjoy. Store in the fridge for up to 1 week or 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
