Banana Protein Muffins are one of my favorite go-to treats to make. I love having a batch ready for breakfast, snacks, or meal prep. I like grabbing one warm in the morning or taking a few with me for later because they’re easy, satisfying, and always hit the spot.

Why You Will Love this Banana Protein Muffins Recipe

Tasty every time – Let’s be honest, taste matters. I love the combination of melty chocolate chips, creamy peanut butter, and naturally sweet bananas. Even though these are healthy, they actually taste like a treat.

Keeps you full – I like that these muffins don’t just taste good they also stick with you (in you lol). The casein protein digests slowly, and with the peanut butter, eggs, and almond flour, they provide healthy fats that help keep hunger at bay longer than a typical muffin.

Actually good for you – I love that these banana protein muffins have no butter, added sugar, or grain flour. They’re packed with protein and wholesome ingredients, so you can feel good about grabbing one.

Quick and easy – I like how simple these are to make. With just 11 ingredients, two bowls, and less than 30 minutes from start to finish, they’re perfect for busy mornings or a last-minute snack.

What you will need to make these Banana Protein Muffins

I like using ripe bananas – The riper, the better! I mash them just enough with a fork; they don’t need to be completely smooth. You can use fresh or thawed frozen bananas. Since there’s no added sugar, the bananas give the muffins their natural sweetness.

Vanilla casein protein – I usually use vanilla powder because it blends beautifully with the banana flavor, but chocolate protein works too if that’s your vibe. I’ve only tested this with a clean, milk-based casein like Levels 100% Micellar Casein Protein, so results might vary with other brands.

Almond flour – I love almond flour for these muffins because it keeps them tender and moist. It’s lighter and finer than almond meal, which makes a big difference in texture.

Unsweetened powdered peanut butter – This is my trick for boosting peanut butter flavor without adding too many calories. I always check the label to make sure it’s just peanuts.

Creamy natural peanut butter – A little real peanut butter adds fat, which keeps the muffins soft. I like using peanut butter made only with peanuts and a pinch of salt, though you could try almond or sunflower butter if you prefer. Peanut butter works best for protein content.

No sugar added dark chocolate chips – I love these in the muffins because they taste rich but keep sugar low. If you prefer, dark chocolate chips work too; I just try to avoid extra sugar.

Baking powder – I use baking powder here because we don’t have acidic ingredients to activate baking soda. It helps the muffins rise and stay tender.

Eggs – Medium or large eggs both work, and they help bind everything together.

Milk – I usually use whole milk, but any milk works. Keep in mind that nutrition stats will shift depending on what you choose.

Ingredients

• 2 eggs, medium or large
• ½ cup unsweetened creamy peanut butter, salted
• 10 tablespoons almond flour
• 17 tablespoons vanilla casein protein powder
• ½ cup unsweetened powdered peanut butter
• 1 ¼ cups mashed ripe banana
• 1 teaspoon pure vanilla extract
• 2 teaspoons baking powder
• ½ teaspoon salt
• ¼ cup milk
• 1 cup no sugar added dark chocolate chips 

How to make Banana Protein Muffins

1. Prepare oven and pan – Heat the oven to 350°F (175°C). Line a 12-cup muffin tin with paper liners or lightly grease it with nonstick spray.
2. Mix the dry ingredients – In a medium bowl, whisk together the vanilla casein protein powder, almond flour, powdered peanut butter, baking powder, and salt until evenly combined.
3. Mix the wet ingredients – In another bowl, combine the mashed bananas, creamy peanut butter, eggs, milk, and vanilla extract. The mixture will have some small chunks from the bananas, which is perfectly fine.
4. Combine wet and dry – Pour the wet mixture into the dry ingredients along with the chocolate chips (reserve a few if you want to sprinkle on top). Gently fold everything together until the batter is thick and no dry streaks remain.
5. Fill the muffin cups – Spoon the batter evenly into the prepared liners. They’ll be quite full, so I like using clean fingertips to gently press the batter down and smooth the tops. Press in a few extra chocolate chips if you saved some.
6. Bake and cool – Bake for 12–15 minutes, or until a toothpick inserted in the center comes out clean. Transfer the pan to a wire rack and let the muffins cool completely before storing.

Storing & Reheating

I like to let these banana protein muffins cool completely before storing cause nobody wants a soggy muffin! Once cooled, I keep them in an airtight container or a zip-top bag. They stay fresh for about 3 days at room temperature or up to 10 days in the fridge, which makes them perfect for meal prep.

If I want to keep these Banana Protein Muffins longer, I freeze the muffins in a freezer-safe bag for up to 3 months. Sometimes I wrap each muffin individually in plastic wrap before freezing to lock in freshness. When it’s time to eat, I either thaw the whole batch in the fridge or let individual muffins sit at room temperature for a few minutes either way, they taste just like fresh-baked.

Recipe Tips

I like to weigh my ingredients whenever possible. This batter is thick, so being too generous with the dry ingredients can change the texture of the muffins. A kitchen scale gives the most consistent results, but if you don’t have one, I spoon the dry ingredients into the measuring cups and level them off with a knife.

You can also have fun with variations. Swap in white chocolate chips, try a different protein powder flavor like chocolate or peanut butter, or use a different nut butter. I sometimes add nuts instead of chocolate chips for a banana nut version that’s just as tasty.

If your bananas aren’t quite ripe, I love this trick: put them in a paper bag, fold it closed, and let them sit for a day or two. Adding an apple, avocado, or another ethylene-producing fruit can speed up the ripening even more.

I like using a spring-loaded cookie scoop to portion the batter, it makes filling the muffin cups quick, easy, and tidy. For the prettiest muffins, I usually reserve a few chocolate chips to press on top just before baking.

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