Healthy High Protein Millionaire Bars -Keto, Gluten-free and Sugar-free

These quick and easy healthy high protein millionaire bars are the perfect combination of crunchiness, sweetness and creaminess. Packed with protein, they are also sugar-free and a great snack during the day or after a workout!

this recipe

Guilt-Free Indulgence: Healthy High Protein Millionaire Bars

Let’s be honest: sometimes you just need a treat. But if you’re like me—trying to support your fitness goals, stay off the sugar rollercoaster, and still enjoy food that feels like a reward—traditional desserts just don’t cut it anymore.

Enter my new obsession: Healthy High Protein Millionaire Bars. These rich, layered bars are everything you love about the classic version—minus the sugar crash. They're keto-friendly, gluten-free, sugar-free, and packed with high-quality protein from pea protein powder and collagen powder by Naked Nutrition.

Yes, dessert can absolutely be part of your wellness routine.

Why I Love These Keto Millionaire Bars

I started experimenting with this recipe when I realized how few clean, protein-rich treats existed that didn’t taste chalky or artificial. Most protein bars on the market are either loaded with sugar alcohols or filled with ingredients I can’t pronounce.

These keto millionaire bars are different. They taste decadent but nourish your body—with no refined sugar, grains, or sketchy additives.

Plus, by using Naked Pea Protein and Naked Caramel Collagen, I know I’m getting clean, effective nutrition without the fluff. The pea protein helps support muscle repair, while the collagen promotes skin elasticity and joint health—something I appreciate more every year.

Millionaire Protein Bars Ingredients and Substitutions

You really don't need that many ingredients to make these sugar-free millionaire bars. However, if you are missing some of the exact ingredients, I am including substitutions that I believe will work. But, since I have only made it with the exact ingredients listed in the recipe card, you might need to adjust some of the substituted ingredient quantities.

• Pea Protein Powder - As I mentioned earlier, I used Plain Naked Pea Protein powder. All protein powders have a variety of flavours as well as absrobency of wet ingredients so you may need to adjust the wet ingredients to accommodate the change. You can also use vanilla or a flavoured pea protein powder but I would suggest you decrease the quantity of sweetener in the crust. I also think that casein would work well but I do not suggest whey.
• Almond Flour - Use super-fine almond flour if possible. You could try using a 1:1 gluten-free baking blend instead of the almond flour or try oat flour.
• Coconut Oil - Using such a small amount of coconut oil does not lend any flavour to the crust. However, if you do not have any coconut oil, you could try using butter or a plant-based butter to make these a vegan healthy chocolate caramel protein bar!
• Sweetener - Any type of sugar substitute will work. Feel free to use regular sugar as well.
• Peanut Butter - You can use almond butter, sunflower seed butter or cashew butter instead.
• Sugar-free Maple Syrup - Adding the sugar-free maple syrup to the peanut butter along with the collagen, creates the texture and taste we are looking for in these keto millionaire bars. You can use sugar-free honey or tapioca fiber syrup instead.
• Naked Caramel Collagen - I LOVE this product and highly suggest you order it RIGHT NOW! However, if you are dying to make these and don't want to wait for your order to arrive, you can use any collagen powder you wish. If your collagen powder is plain, you may need to add some additional sweetener and a dash of caramel extract to get the caramel flavour.
• Sugar-free Chocolate - You can use any type of sugar-free chocolate or regular chocolate for the topping.
• Salt and Vanilla

Healthy Chocolate Caramel Protein Bar Recipe

I made these keto millionaire bars in an 8 x 4 lined loaf pan. Feel free to double the ingredients and make them in an 8 x 8 inch baking pan instead if you wish!

Step 1 - Make the Pea Protein Base Layer

• Mix all base ingredients in a bowl until a dough forms. Press into a parchment-lined loaf pan. Tip - if the mixture will not stick together, add 1 teaspoon of water at a time until it sticks to itself

• Bake at 350 degrees F. for 10-12 minutes or until the edges just begin to brown.

Step 2 - Make the Collagen Caramel Layer

• Melt the peanut butter and sugar-free maple syrup together in the microwave for about 30-60 seconds. Stir in the remaining ingredients.

• Spread the mixture over the cooled crust. Tip - the crust can still be slightly warm when pouring the collagen caramel layer over the top

Step 3 - Make the Sugar-free Chocolate Layer

• Melt the chocolate in the microwave for 30 seconds. Stir and return it to the microwave for 15-second intervals, stirring in between, until the chocolate has fully melted.

• Carefully pour the melted chocolate over the caramel layer. Smooth the top and chill until set (about 20 minutes).
• Slice into bars and store in the fridge or freezer.

The Nutritional Boost You Didn’t Know You Needed

These bars aren’t just a healthier treat—they’re a smart way to sneak in high-quality protein and support your wellness goals.

• Pea protein powder is plant-based, easy to digest, and rich in essential amino acids. It blends seamlessly into recipes without overpowering the flavor.
• Collagen powder helps support joint health, skin elasticity, and gut function. Naked Nutrition’s collagen is hydrolyzed, so it mixes in easily and is absorbed efficiently.

Both products are made with minimal ingredients—no artificial sweeteners, fillers, or preservatives. Just clean, functional fuel.

Final Thoughts

If you’ve been craving something sweet but don’t want to compromise your health goals, these keto millionaire bars are your answer. With the help of Naked Nutrition’s pea protein and collagen, you can indulge smarter—and feel better doing it.

I make a batch every Sunday, and they’ve become my go-to afternoon snack or post-dinner bite. Try them once, and you’ll see: dessert doesn’t have to be a cheat.

Stay strong, stay nourished—and don’t forget to treat yourself.

– Cat

More Collagen Protein Recipes

• Keto Marine Collagen Giant Cookie - No Eggs!
• Easy Keto Lemon Cookie Bars with Collagen
• Chewy Keto Peanut Butter Collagen Cookies - High Fiber!

More Keto and Sugar-free Protein Bar Recipes

• Protein Carrot Cake Bars with Vanilla Protein Frosting
• PSMF Birthday Cake Protein Bars
• Easy Keto Protein Pumpkin Seed Bars - Copycat Health Warrior Bar
• Clean Keto Collagen Protein Bar - Dairy-Free under 100 Calories!

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