Banana Protein Muffins are soft, fluffy muffins made with mashed ripe bananas, Greek yogurt, vanilla protein powder, and just the right amount of cinnamon.
I feel like protein muffins are usually dry and crumbly. These are not that! They taste like real banana bread.
- Susan Y.
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Bailey's Thoughts ...
These took more testing than I care to admit. Protein muffins are notorious for baking up flat or dry, and I wasn’t interested in either. The 425°F start and not overfilling the liners changed everything. The result is a soft center and an actual dome.
They bake up tender, lightly sweet, and just structured enough to hold together without feeling dense. The batter is thick. That’s normal. Mashed ripe bananas bring moisture and flavor, Greek yogurt keeps them soft, and whey protein adds a richness that makes these feel substantial but not heavy.
A few important things. Use very ripe bananas and mash them well. These are not overly sweet, so the bananas need to do their job. Do not overfill the muffin cups. Two-thirds full is the sweet spot. And yes, a serving is two muffins. I kept them smaller on purpose so they bake properly without spreading or flattening. Protein powders behave differently. I tested this with Clean Simple Eats. Vanilla Protein Powder. If you use something else, you may need small tweaks. Also, I almost always add mini chocolate chips because my kids expect it, but I left them out of the base recipe so you can decide what works best for you.
Bailey
P.S. If you love these, you need to try my Blueberry Protein Muffins. They have over a million views and are the most popular recipe on my site for a reason.
Ingredients + Substitutions
Mashed Ripe Banana: The main flavor and moisture base of these muffins. No substitution.
Plain Greek Yogurt (Whole): Keeps the muffins moist and adds protein without making them dense. Substitution: Use ½ cup sour cream. It has a similar thickness and fat content to Greek yogurt and will produce the most consistent result.
Neutral Oil: Adds moisture and keeps the texture soft. Substitution: Use ¼ cup melted coconut oil or ¼ cup light olive oil.
Granulated Sugar: Sweetens the muffins and helps them brown properly. Substitution: Use ⅓ cup regular brown sugar in place of granulated sugar.
Large Eggs: Help bind the batter and give the muffins structure and lift. Substitution: Do not substitute.
Vanilla Extract: Adds warmth and rounds out the banana flavor. Substitution: Use 1 teaspoon maple syrup or ½ teaspoon almond extract.
All-Purpose Flour: Provides structure so the muffins hold together and bake up fluffy. Substitution: Use 1 cup whole wheat flour for a slightly heartier texture.
Vanilla Protein Powder: This recipe was tested using Clean Simple Eats. vanilla protein powder, which is whey-based. Different protein powders absorb moisture differently and can change the texture of the muffins. For best results, use a whey-based protein powder. Using plant-based or heavily sweetened powders may result in a denser muffin.
Cinnamon: Adds warmth and enhances the banana flavor. Substitution: Use ½ teaspoon nutmeg or pumpkin pie spice.
Baking Powder: Helps the muffins rise and stay fluffy. Substitution: Do not substitute.
Baking Soda: Works with the yogurt and bananas to give the muffins structure and rise. Do not substitute.
Instructions
- Step 1: Mash the bananas. In a large bowl, mash the ripe bananas until mostly smooth with a few small lumps remaining.
- Step 2: Mix the wet ingredients. Add the Greek yogurt, oil, sugar, eggs, and vanilla to the mashed bananas and whisk until smooth and fully combined.
- Step 3: Combine the dry ingredients. In a separate bowl, whisk together the flour, protein powder, cinnamon, baking powder, baking soda, and salt until evenly mixed.
- Step 4: Add the dry ingredients to the wet ingredients and fold gently. Do not overmix.
- Step 5: Fill the muffin cups. Divide the batter evenly among the prepared muffin liners, filling each about two-thirds full for even rising.
- Step 6: Bake until the centers are set and a toothpick inserted comes out clean or with a few moist crumbs.
Top Tips
- Use truly ripe bananas. If they don’t have brown spots, wait. Underripe bananas will make these bland and less sweet.
- Don’t pack the protein powder. Scoop it gently and level it off. Too much will make the muffins dry and heavy.
- Stop mixing early. The batter should look just combined, not perfectly smooth. Overmixing is the fastest way to lose that soft texture.
- Fill the liners only two-thirds full. Protein muffins don’t rise like bakery muffins. Overfilling leads to flat tops.
- Use silicone liners if you have them. These muffins tend to cling to paper liners, and silicone makes removal much easier.
Equipment
Muffin Tin or Silicone Muffin Pan: Holds the batter in shape. A standard metal 12-cup tin works, and a silicone muffin pan is even better for easy removal.
Silicone Liners: Make removal easy and prevent sticking. Paper liners work, but silicone releases more cleanly. You can also grease the pan well and skip liners entirely.
Large Mixing Bowl: Gives you room to mix without overworking the batter. Any sturdy bowl works.
Whisk: Quickly combines dry ingredients and blends the wet mixture smoothly. A fork works if that is what you have.
Rubber Spatula: Folds everything together without overmixing. A wooden spoon will also get the job done.
Cookie Scoop: Portions the batter evenly so the muffins bake at the same rate. A measuring cup works if you do not have one.
Variations
Gluten-Free: I would not try to force this one to be gluten-free. Baking ratios matter. Use a recipe that was developed specifically for gluten-free flour.
Nut-Free: Already is. Just double-check your protein powder and chocolate chips if allergies are a concern.
Dairy-Free: Use a thick dairy-free yogurt and a dairy-free protein powder. Expect a slightly denser texture depending on the brand.
Vegetarian: Already is.
Low-Carb: Not a great candidate. Bananas are the base here. If you need low-carb, choose a recipe built around almond flour and low-carb sweeteners from the start.
Storage
Refrigerate: Store cooled muffins in an airtight container in the refrigerator for up to 5 days. Place a paper towel in the container to absorb excess moisture and prevent soggy tops.
Freeze: These freeze well. Let the muffins cool completely, then transfer to a freezer-safe container or freezer bag and freeze for up to 3 months. Thaw overnight in the refrigerator or at room temperature.
Reheat: Warm in the microwave for 15–20 seconds until just heated through. For a slightly crisp exterior, reheat in a 300°F oven for several minutes. Avoid overheating, as protein muffins can dry out quickly.
FAQ
Yes, but results will vary. Whey-based protein powders bake higher, while plant based powders can make the muffins denser.
Too much protein powder or overmixing is usually the cause. Measure carefully and fold the batter just until combined.
The exact grams of protein depend on the brand of protein powder used.
Protein muffins do not rise as dramatically as traditional muffins. Make sure your baking powder is fresh and avoid overmixing.
Related
Looking for other recipes like this? Try these:
Pairing
These are my favorite dishes to serve with banana protein muffins:
Recipe
Easy Banana Protein Muffins
Banana Protein Muffins are soft, fluffy muffins made with mashed ripe bananas, Greek yogurt, vanilla protein powder, and just the right amount of cinnamon. They bake up tender and moist with a balanced sweetness, making them an easy, high-protein option for breakfast, meal prep, or a healthy snack.
- Total Time0 hours
- Yield12 muffins 1x
- DietVegetarian
Ingredients
Protein muffins can be finicky. Weighing the bananas, protein powder, and flour will give you the most consistent results.
- 1½ cups mashed ripe banana (about 3 small bananas) – 340 g
- ½ cup plain Greek yogurt (whole) – 120 g
- ¼ cup neutral oil – 55 g
- ⅓ cup granulated sugar – 67 g
- 2 large eggs, room temperature – 100 g (without shells)
- 1 teaspoon vanilla extract – 5 g
- 1 cup all-purpose flour – 120 g
- ½ cup vanilla protein powder – 60 g (this can vary slightly by brand)
- 1½ teaspoons cinnamon – 4 g
- 2 teaspoons baking powder – 8 g
- ½ teaspoon baking soda – 3 g
- ½ teaspoon fine salt – 3 g
- ½ cup mini chocolate chips (optional) – 85 g
Instructions
- Heat the oven and prepare the pan. Preheat the oven to 425°F. Line a standard muffin tin with paper liners and lightly spray them, or use silicone liners. A silicone muffin pan also works well.
- Mix the wet ingredients. In a large bowl, whisk together the mashed ripe banana (1½ cups), plain Greek yogurt (½ cup), neutral oil (¼ cup), granulated sugar (⅓ cup), large eggs (2), and vanilla extract (1 teaspoon) until smooth.
- Combine the dry ingredients. In a separate bowl, whisk together the all-purpose flour (1 cup), vanilla protein powder (½ cup), cinnamon (1½ teaspoons), baking powder (2 teaspoons), baking soda (½ teaspoon), and fine salt (½ teaspoon) until evenly combined.
- Make the batter. Add the dry ingredients to the wet ingredients and fold gently just until combined. If using, fold in the mini chocolate chips (½ cup). Do not overmix. The batter should be thick but spoonable. Do not over mix.
- Fill the muffin cups. Divide the batter evenly among the prepared liners, filling each about two-thirds full.
- Bake and cool. Bake at 425°F for 5 minutes. Without opening the oven, reduce the temperature to 350°F and bake for an additional 10–15 minutes, for a total bake time of 15–20 minutes, until the centers are set and a toothpick inserted comes out clean or with a few moist crumbs. Let the muffins cool in the pan for 5 minutes before transferring to a rack to cool completely.
Notes
Protein Powder Matters: This recipe was tested with Clean Simple Eats. vanilla whey protein powder. Whey-based powders bake lighter. Plant-based powders can produce a denser, drier muffin.
Measure Protein Powder Correctly: Spoon and level the protein powder. Do not pack it. Too much will make the muffins dry and heavy.
Use Very Ripe Bananas: Bananas should have deep brown spots. Underripe bananas make the muffins bland and less sweet.
Do Not Over mix: Once the dry ingredients are added, fold just until combined. Over mixing leads to dense muffins.
Batter Texture: The batter should be thick but spoonable. If it looks stiff and dry, your protein powder may be more absorbent than the one tested.
Fill Only Two-Thirds Full: Overfilling reduces dome height and can cause spreading instead of rising.
High-Heat Start Is Intentional: The 425°F start helps create taller domes. Do not skip this step.
Do Not Open the Oven Early: Opening the oven during the first 5 minutes can reduce lift.
Silicone Liners Work Best: Protein muffins tend to stick to paper liners. Silicone liners release cleanly.
Storage Tip: Protein muffins dry out faster than traditional muffins. Store in an airtight container.
Sweetness Expectation: These are not bakery-sweet. They are lightly sweet and designed as a high-protein breakfast option.
- Prep Time: 10 minutes
- Cook Time: 15-20 minutes
- Category: Breakfast
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 2 muffins
- Calories: 226
- Sugar: 12.8 g
- Sodium: 248 mg
- Fat: 8.4 g
- Carbohydrates: 30.7 g
- Protein: 8.6 g
- Cholesterol: 44.2 mg
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