One-Bowl Carrot Zucchini Muffins with Cinnamon

These one-bowl carrot zucchini muffins are moist, tender, and packed with a warm hint of cinnamon in every bite. The shredded veggies do all the work for texture, keeping them soft for days.

They come together quickly with pantry staples and bake into golden-topped muffins that work for breakfast, a lunchbox treat, or an afternoon snack. No mixer, no fuss.

Why These Muffins Stay So Soft

I keep coming back to these muffins because they’re so reliably moist. The shredded zucchini melts into the crumb as it bakes, adding tenderness without any squashy taste. You get a soft texture that stays fresh for days.

Brown sugar and cinnamon give them a cozy, slightly caramel-like sweetness. They’re just sweet enough to feel like a treat, not a cake, which makes them feel right any time of day.

Ingredients

• 1 3/4 cups all-purpose flour: spooned and leveled
• 3/4 cup light brown sugar, packed
• 1 teaspoon baking powder
• 1/2 teaspoon baking soda
• 1/4 teaspoon salt
• 1 teaspoon ground cinnamon
• 2 large eggs: at room temperature if you remember, but cold works too
• 1/2 cup vegetable oil: or melted coconut oil
• 1 teaspoon vanilla extract
• 1 cup shredded carrot: about 1 medium carrot
• 1 cup shredded zucchini, lightly packed and not squeezed: about 1 small zucchini

Variations / Substitutions

• Whole wheat flour: Swap up to half the all-purpose flour with whole wheat for a nuttier flavor; the muffins will be a little denser but still tasty.
• Add-ins: Fold in 1/2 cup chopped walnuts, pecans, or raisins right after the vegetables.
• Spice swap: Use nutmeg or a pinch of ginger alongside the cinnamon for a warmer note.
• Dairy-free: These are naturally dairy-free as written, since they use oil.
• Vegan option: Replace the eggs with 2 flax eggs (2 tablespoons ground flaxseed plus 6 tablespoons water, let sit 5 minutes). The texture will be slightly less fluffy but still good.

If you enjoy these, try our apple cinnamon muffins next.

How to Make Carrot Zucchini Muffins

Step 1: Whisk the Wet Ingredients

Preheat your oven to 400°F (200°C) and line a 12-cup muffin tin with paper liners. In a large mixing bowl, whisk together the 3/4 cup brown sugar, 1/2 cup oil, 2 eggs, and 1 teaspoon vanilla until the mixture is smooth and slightly lighter, about 1 minute.

The mixture will look glossy and thick, and you’ll smell the vanilla right away. That quick whisk dissolves the sugar and gets the eggs working, which helps the muffins rise later.

Step 2: Add the Dry Ingredients

Sprinkle the 1 3/4 cups flour, baking powder, baking soda, salt, and cinnamon right over the wet mixture. Stir with a spatula just until no dry streaks remain, about 15 strokes. A few small lumps are fine; stop as soon as the flour disappears.

The batter should be thick and stiff, not pourable. If you keep stirring past this point, gluten develops and the muffins will turn out tough, so a light hand matters.

Step 3: Fold in the Carrots and Zucchini

Add the 1 cup shredded carrot and the 1 cup shredded zucchini directly to the bowl. Fold them in with a spatula using a few broad strokes, just until the orange and green flecks are evenly distributed—about 10 seconds.

The zucchini will release a bit of moisture, loosening the batter slightly. That’s exactly what you want; don’t be tempted to squeeze the zucchini dry. The extra liquid is what keeps the muffins tender for days.

Step 4: Scoop and Bake the Muffins

Divide the batter evenly among the prepared muffin cups, filling each about 3/4 full. A spring-loaded scoop makes it neat. Bake for 18 to 20 minutes, until the tops are domed and golden, and a toothpick inserted in the center comes out clean.

Let the muffins cool in the pan for 5 minutes, then transfer them to a wire rack to cool completely. They’re wonderful warm, or at room temperature later. The crumb will be soft and light, with a faint cinnamon scent.

Tips for the Best Muffins

• Grate your own vegetables: Pre-shredded carrots and zucchini from a bag are often dry and coarse, which can make the muffins dense. Freshly grated gives the right moisture and a finer crumb.
• Do not squeeze the zucchini: Its natural water content is what makes the crumb soft and keeps the muffins from drying out. Just shred it and toss it in.
• Measure flour the right way: Spoon the flour into the measuring cup and level it off with a knife. Scooping directly packs in too much flour and leads to heavy, dry muffins.
• Mix with a light hand: Stop stirring the moment the flour disappears and again as soon as the vegetables are folded in. Overworking creates a rubbery, peaked muffin top.
• Check your oven’s real temperature: An oven that runs hot can overbake the edges before the center sets. If you have an oven thermometer, use it to confirm 400°F means 400°F.

Bake times for different pans:

Storing Leftover Muffins

• Room temperature: Keep muffins in an airtight container for up to 3 days. They stay moist at room temp.
• Refrigerator: Store in the fridge for up to a week, though the texture may dry a little. Bring to room temperature or warm before eating.
• Freezer: Wrap each muffin individually in plastic wrap and place in a zip-top bag; freeze for up to 3 months. Thaw on the counter or microwave for 15 seconds.
• Reheating: A 10-15 second zap in the microwave brings back that fresh-baked warmth.

Frequently Asked Questions

Why did my muffins turn out dense or gummy?

Overmixing the batter or packing in too much flour are the most common reasons. Stir just until the ingredients combine, and measure flour by spooning it into the cup.

Can I use pre-shredded carrots and zucchini from a bag?

I don’t recommend it. Store-bought shredded veggies are drier and coarser, which makes the muffins less tender and more crumbly. Freshly grated gives much better results.

How do I get tall, domed muffin tops?

Filling the cups nearly full and starting the bake at a solid 400°F gives a nice lift. Also avoid opening the oven door during the first 15 minutes so the heat stays steady.

Carrot Zucchini Muffins Recipe

Print Recipe Pin Recipe

Prep Time 10 minutes mins

Cook Time 20 minutes mins

Total Time 30 minutes mins

Servings: 12 servings

Calories: 214

Ingredients Method Notes

Ingredients

  

• 1 3/4 cups all-purpose flour
• 3/4 cup light brown sugar, packed
• 1 teaspoon baking powder
• 1/2 teaspoon baking soda
• 1/4 teaspoon salt
• 1 teaspoon ground cinnamon
• 2 large eggs
• 1/2 cup vegetable oil
• 1 teaspoon vanilla extract
• 1 cup shredded carrot
• 1 cup shredded zucchini, lightly packed and not squeezed

Method

 

1. Preheat oven to 400°F (200°C) and line a 12-cup muffin tin. Whisk the brown sugar, oil, eggs, and vanilla until smooth, about 1 minute.
2. Sprinkle the flour, baking powder, baking soda, salt, and cinnamon over the wet mixture. Stir with a spatula just until no dry streaks remain; a few small lumps are okay.
3. Fold in the shredded carrot and zucchini until just distributed, about 10 seconds. Do not squeeze the zucchini.
4. Divide batter evenly among muffin cups, filling each 3/4 full. Bake 18 to 20 minutes, until golden and a toothpick comes out clean. Cool in the pan 5 minutes, then transfer to a rack.

Notes

Don’t squeeze the zucchini; its natural moisture keeps the muffins soft. For extra texture, fold in 1/2 cup chopped walnuts along with the vegetables if you like a little crunch.