Why You’ll Love This Protein Muffins with Zucchini
- They’re secretly packed with veggies. The shredded zucchini melts right into the batter, giving you a boost of nutrients and incredible moisture without a veggie-forward taste. It’s a brilliant way to add a little extra goodness to your day.
- The perfect texture balance. We’re aiming for a muffin that’s light and fluffy, not heavy or gummy. The combination of oat flour and protein powder, along with the zucchini, creates a satisfying bite that’s neither too cakey nor too dense.
- They freeze like a dream. Making a double batch is highly recommended. You can pop these muffins in the freezer and have a ready-to-go, healthy option anytime. Just thaw at room temperature or give them a quick zap in the microwave.
- Endlessly customizable. Feel like adding chocolate chips, nuts, or a different spice? Go for it! This recipe is a fantastic base that you can tweak to your heart’s content, making it a staple you’ll come back to again and again.
Ingredients & Tools
- 1 ½ cups oat flour (gluten-free if needed)
- ½ cup vanilla or unflavored protein powder
- 1 tsp baking powder
- ½ tsp baking soda
- 1 tsp ground cinnamon
- ¼ tsp ground nutmeg
- ¼ tsp salt
- 2 large eggs
- ⅓ cup maple syrup or honey
- ⅓ cup unsweetened applesauce
- 1 tsp vanilla extract
- 1 ½ cups finely shredded zucchini (from about 1 medium zucchini)
- ½ cup dark chocolate chips or chopped walnuts (optional)
Tools: 12-cup muffin tin, muffin liners, mixing bowls, box grater, kitchen towel or cheesecloth, whisk, spatula.
A quick note on the ingredients—using applesauce instead of a lot of oil keeps the muffins light, and the protein powder is key for that boost. Don’t skip squeezing the zucchini! It seems like a small step, but it makes a huge difference in preventing soggy muffins.
Serves: 12 | Prep Time: 15 mins | Cook Time: 20-22 mins | Total Time: 40 mins
Before You Start: Tips & Ingredient Notes
- Why squeeze the zucchini? Zucchini holds a surprising amount of water. If you don’t squeeze it out, that extra moisture will steam inside the muffin as it bakes, leading to a wet, gummy texture. Taking a minute to wring it out is the secret to a perfect crumb.
- What kind of protein powder works best? I’ve had great success with both whey-casein blends and plant-based powders like pea or brown rice protein. The key is to use a powder you enjoy the taste of on its own. Avoid “mass gainer” types as they can make the muffins too sweet and dense.
- Can I use a different flour? Absolutely. While oat flour gives a lovely, mild flavor and tender texture, whole wheat pastry flour or a 1:1 gluten-free baking flour blend would also work well. The liquid ratios might vary slightly, so the batter consistency is your best guide.
- Don’t overmix the batter! This is muffin-making rule number one. Once you add the dry ingredients to the wet, mix just until the flour disappears. A few lumps are totally fine. Overmixing develops the gluten and can lead to tough, tunnel-ridden muffins.
How to Make Protein Muffins with Zucchini
Step 1: Prep the Zucchini. This is our most crucial step. Start by shredding your zucchini on the fine side of a box grater. You’ll want about a cup and a half, packed. Then, pile the shredded zucchini into a clean kitchen towel or a few layers of cheesecloth. Twist the towel tightly over the sink and squeeze with all your might—you’ll be amazed at how much liquid comes out. We’re aiming for a relatively dry, clumpy pile of zucchini. Set this aside while you work on the rest.
Step 2: Combine the Dry Ingredients. In a large mixing bowl, whisk together the oat flour, protein powder, baking powder, baking soda, cinnamon, nutmeg, and salt. Whisking well here ensures the leavening agents are evenly distributed, which is key for a nice, even rise in the oven. You’ll get a whiff of those warm spices—it already smells like comfort.
Step 3: Whisk the Wet Ingredients. In a separate, medium-sized bowl, whisk the eggs until they’re well beaten and a little frothy. Then, add in the maple syrup, applesauce, and vanilla extract. Whisk it all together until it’s smooth and fully combined. The mixture will be a pale golden color and have a lovely, sweet aroma.
Step 4: Bring It All Together. Now, pour the wet ingredients into the bowl with the dry ingredients. Using a spatula, gently fold them together. Remember, less is more! Stop folding when you just barely see no more dry streaks of flour. It will be a thick batter. Now, add your well-squeezed zucchini and any optional add-ins like chocolate chips. Fold again, just until everything is evenly incorporated.
Step 5: Portion and Bake. Preheat your oven to 350°F (175°C) and line a muffin tin with liners. Using a spoon or cookie scoop, divide the batter evenly among the 12 cups. They should be filled nearly to the top for a nice, domed muffin. Pop the tin into the preheated oven and bake for 20-22 minutes. You’ll know they’re done when the tops are springy to the touch and a toothpick inserted into the center comes out clean.
Step 6: Cool Completely. This part requires a little patience. Let the muffins cool in the tin for about 5 minutes before transferring them to a wire rack to cool completely. If you try to peel the liner off while they’re still hot, they might stick. Cooling them fully helps them set and makes them much easier to handle.
Serving Suggestions
Complementary Dishes
- A bowl of Greek yogurt with berries — The creamy, tangy yogurt pairs beautifully with the warm spice of the muffin, creating a perfectly balanced breakfast.
- A simple side of scrambled eggs — For a protein-packed start to the day, the savory eggs contrast wonderfully with the subtly sweet muffin.
- A green smoothie — Keep the healthy vibes going! The muffin adds a satisfying chew to a light, refreshing drink.
Drinks
- A cold glass of milk or your favorite milk alternative — It’s a classic for a reason. The cool milk is the perfect companion to a warm, just-out-of-the-oven muffin.
- A hot cup of coffee or black tea — The bitterness of the coffee or tea cuts through the sweetness and highlights the warm spices in the muffin.
- A chai latte — Double down on the cozy spice factor. The flavors in the muffin and the drink will harmonize beautifully.
Something Sweet
- A small bowl of fresh fruit salad — For a light finish, the natural sweetness of ripe seasonal fruit is all you need.
- A dollop of whipped coconut cream — If you’re feeling indulgent, this turns your muffin into a delightful, almost dessert-like treat.
- A drizzle of almond butter — Adds a rich, nutty flavor and even more protein, making your snack extra satisfying.
Top Mistakes to Avoid
- Mistake: Skipping the zucchini squeeze. I know, it feels like an extra step, but I promise it’s non-negotiable. Wet zucchini equals soggy, dense muffins that steam instead of bake. A quick squeeze is the difference between a good muffin and a great one.
- Mistake: Overmixing the batter. When you see the last bit of flour disappear, stop mixing! Vigorous stirring after that point develops the gluten in the oat flour, leading to a tough, chewy texture instead of a light and tender crumb.
- Mistake: Using an unlined or ungreased muffin tin. These muffins, thanks to the applesauce and zucchini, can be a bit sticky. Using paper liners or thoroughly greasing the tin ensures they come out in one beautiful piece.
- Mistake: Not filling the muffin cups enough. Don’t be shy! Fill those cups nearly to the top. This batter has enough lift to create a lovely domed top. Underfilling will give you flat, sad-looking muffins.
Expert Tips
- Tip: Grate the zucchini finely. Using the small holes on your grater means the zucchini will blend seamlessly into the batter, leaving no stringy bits. It creates a more uniform texture that everyone will love.
- Tip: Let the batter rest for 5 minutes. After you’ve mixed everything, just let the batter sit in the bowl while the oven preheats. This allows the oat flour to fully hydrate, resulting in a more consistent texture and a better rise.
- Tip: Add a sprinkle on top. Before baking, sprinkle a few extra chocolate chips or a pinch of rolled oats on top of each muffin. This gives them a professional, bakery-style finish that’s as pleasing to the eye as it is to the palate.
- Tip: Test for doneness with a toothpick. Ovens can vary, so start checking at the 18-minute mark. The toothpick should come out with just a crumb or two, not wet batter. The tops should also feel firm and spring back when lightly pressed.
FAQs
Can I make these muffins without protein powder?
You can, but you’ll need to make a couple of adjustments. The protein powder acts as both a flavor and structural component. To replace it, use an additional ½ cup of oat flour and consider adding a tablespoon of sugar or maple syrup to compensate for the slight sweetness that vanilla protein powder provides. The texture will be a bit more delicate, but still delicious.
How should I store these muffins, and how long will they last?
Once completely cool, store them in an airtight container at room temperature for 2-3 days. For longer storage, they freeze exceptionally well. Place them in a freezer-safe bag or container, and they’ll keep for up to 3 months. Thaw at room temperature or microwave for 20-30 seconds for a warm treat.
My muffins turned out a little dense. What happened?
A dense texture usually points to one of two things: either the zucchini wasn’t squeezed enough, introducing too much moisture, or the batter was overmixed. Remember, gentle folding is key! Also, make sure your baking powder and soda are fresh, as old leaveners lose their potency and won’t provide enough lift.
Can I use a different sweetener?
Absolutely. Maple syrup and honey work beautifully. You could also use an equal amount of coconut sugar dissolved in a tablespoon of milk or water to help it incorporate. Liquid stevia drops could work too, but you’d need to experiment with the amount and potentially add a bit more applesauce or milk to maintain the right batter consistency.
Are these muffins kid-friendly?
Honestly, yes! The zucchini is virtually undetectable, especially if you grate it finely. The subtle sweetness and familiar muffin shape are usually a big hit. If you want to make them even more appealing to little ones, you can’t go wrong by adding a handful of chocolate chips—it turns them into a special treat they’ll ask for again and again.
Protein Muffins With Zucchini
Whip up moist, flavorful Protein Muffins with Zucchini! This easy recipe is perfect for busy mornings & post-workout fuel. Secretly packed with veggies & freezer-friendly.
Ingredients
Ingredients
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1 ½ cups oat flour (gluten-free if needed)
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½ cup vanilla or unflavored protein powder
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1 tsp baking powder
-
½ tsp baking soda
-
1 tsp ground cinnamon
-
¼ tsp ground nutmeg
-
¼ tsp salt
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2 large eggs
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⅓ cup maple syrup or honey
-
⅓ cup unsweetened applesauce
-
1 tsp vanilla extract
-
1 ½ cups finely shredded zucchini (from about 1 medium zucchini)
-
½ cup dark chocolate chips or chopped walnuts (optional)
Instructions
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Prep the Zucchini. This is our most crucial step. Start by shredding your zucchini on the fine side of a box grater. You'll want about a cup and a half, packed. Then, pile the shredded zucchini into a clean kitchen towel or a few layers of cheesecloth. Twist the towel tightly over the sink and squeeze with all your might—you'll be amazed at how much liquid comes out. We're aiming for a relatively dry, clumpy pile of zucchini. Set this aside while you work on the rest.01
-
Combine the Dry Ingredients. In a large mixing bowl, whisk together the oat flour, protein powder, baking powder, baking soda, cinnamon, nutmeg, and salt. Whisking well here ensures the leavening agents are evenly distributed, which is key for a nice, even rise in the oven. You'll get a whiff of those warm spices—it already smells like comfort.02
-
Whisk the Wet Ingredients. In a separate, medium-sized bowl, whisk the eggs until they're well beaten and a little frothy. Then, add in the maple syrup, applesauce, and vanilla extract. Whisk it all together until it's smooth and fully combined. The mixture will be a pale golden color and have a lovely, sweet aroma.03
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Bring It All Together. Now, pour the wet ingredients into the bowl with the dry ingredients. Using a spatula, gently fold them together. Remember, less is more! Stop folding when you just barely see no more dry streaks of flour. It will be a thick batter. Now, add your well-squeezed zucchini and any optional add-ins like chocolate chips. Fold again, just until everything is evenly incorporated.04
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Portion and Bake. Preheat your oven to 350°F (175°C) and line a muffin tin with liners. Using a spoon or cookie scoop, divide the batter evenly among the 12 cups. They should be filled nearly to the top for a nice, domed muffin. Pop the tin into the preheated oven and bake for 20-22 minutes. You'll know they're done when the tops are springy to the touch and a toothpick inserted into the center comes out clean.05
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Cool Completely. This part requires a little patience. Let the muffins cool in the tin for about 5 minutes before transferring them to a wire rack to cool completely. If you try to peel the liner off while they're still hot, they might stick. Cooling them fully helps them set and makes them much easier to handle.06


