Snickerdoodle Zucchini Bread with cream of tartar and coconut oil

Imagine a snickerdoodle zucchini bread made with coconut oil and a cinnamon sugar topping, all thanks to cream of tartar for that classic snickerdoodle flavor. This recipe yields two loaves and, believe me, it tastes even better the next day.

This snickerdoodle zucchini bread is a go-to for me every summer when zucchini is overflowing from the garden. Over the years, I’ve adjusted the recipe based on reader tips and my own kitchen experiments — and now I think it’s just about perfect.

So, what’s the secret that makes this snickerdoodle zucchini bread stand out? Cream of tartar, my friend.

One of my readers mentioned that most zucchini breads calling themselves snickerdoodle just don’t have it, which surprised me because cream of tartar is a staple in true snickerdoodle cookies. She was absolutely right. I tested the addition immediately, and what a difference it makes! The bread becomes lighter and more tender, with that unmistakable snickerdoodle aroma filling the kitchen while baking. I use cream of tartar in both the batter and the cinnamon sugar topping to nail that flavor.

I also swap out vegetable oil for coconut oil in this recipe. Coconut oil brings a subtle, natural sweetness that lets me cut back on added sugar without any coconut flavor sneaking in — just a lovely, tender crumb.

And here’s a little tip: this zucchini bread is seriously even better the next day. The flavors deepen and the texture softens up beautifully. Since you get two loaves, you can share one, freeze one, or enjoy one right now and stash the other for later.

I’ve made this snickerdoodle zucchini bread time after time, always tweaking just a bit, and I keep coming back because that cream of tartar really transforms it. Plus, the coconut oil keeps every bite moist and tender without weighing it down.

Try it once, and this will be your favorite summer zucchini recipe, I promise.

Notes

Picture this: warm snickerdoodle zucchini bread filling your kitchen with the cozy scent of cinnamon sugar and that unmistakable tang of true snickerdoodle cookies, balanced perfectly with the fresh mild sweetness from summer zucchini. This recipe is a favorite I return to year after year because it’s easy to pull together and delivers consistent, delicious results each time.

What makes this snickerdoodle zucchini bread so special is its simple but brilliant twist: cream of tartar in both the batter and the cinnamon sugar topping. This little addition gives you real-deal snickerdoodle flavor, not just a generic cinnamon quick bread. Plus, I use melted coconut oil instead of vegetable oil for a tender crumb with a whisper of natural sweetness — no coconut flavor at all, just a great texture.

This batter comes together quickly, and you’ll have two beautiful loaves that bake in under an hour. The crumb is soft and lightly cake-like, perfect with that cinnamon sugar layer baked right into and on top of the loaf.

Here’s what you can expect once you dive into making this snickerdoodle zucchini bread:

• Flavor: Authentic snickerdoodle cinnamon thanks to cream of tartar – way richer than your average cinnamon zucchini bread.
• Yield: Two loaf pans, perfect if you want to share or freeze half.
• Timing: Just 10 minutes to prep, then 45–50 minutes baking.
• Texture: Light, moist crumb with a sweet cinnamon sugar layer inside and out, thanks to coconut oil and cream of tartar.
• Make-ahead: Even better the next day, and it freezes beautifully for easy future treats.

If you’re excited to bake, scroll down to the ingredients and instructions — or check out my notes and tips to get some cheat codes and swap ideas before you start.

Why This Recipe Stands Out

• This snickerdoodle zucchini bread shines because it uses cream of tartar in the batter and the topping, creating a deep, genuine snickerdoodle flavor instead of just cinnamon.
• You get two loaves from one batch — eat one fresh and freeze the other for later.
• The bread tastes even better the day after baking when the flavors meld, making it perfect for making ahead or gift-giving.
• Coconut oil lends a subtle natural sweetness that reduces the need for extra sugar and keeps the bread tender.

• The prep is quick — about 10 minutes — then the oven does all the work.

• Cream of tartar gives this bread a lighter, more delicate crumb compared to baking powder. It’s also the key to the authentic snickerdoodle flavor that makes you think of cinnamon sugar cookies.
• Adding cream of tartar to the topping sugar intensifies that classic snickerdoodle taste — it’s the same trick used in the cookies.
• Coconut oil brings a gentle sweetness you won’t get from neutral oils, allowing you to use less sugar overall and keeping the loaf moist.
• Don’t dry your zucchini first — the moisture from the fresh grated zucchini helps keep the bread tender and prevents density.
• The cinnamon sugar topping is layered inside and on top, giving you that lovely crust and flavor right through every slice.

Ingredients for Two Loaves

• 1 cup coconut oil, melted
• 3 eggs
• 1¼ cups granulated white sugar
• 1 teaspoon vanilla extract
• 3 cups all-purpose flour
• 2 teaspoons cinnamon
• 1 teaspoon baking soda
• ½ teaspoon cream of tartar*
• 1 teaspoon salt
• 2 cups grated fresh zucchini, wet (don’t dry it—you want the moisture!)
• ½ cup granulated white sugar
• 1 teaspoon cinnamon
• ¼ teaspoon cream of tartar*

Step-by-Step Baking Directions

1. Preheat oven to 350°F and grease two 4½” x 8½” loaf pans with cooking spray.
2. Melt 1 cup coconut oil until liquid.
3. In a large bowl whisk together melted coconut oil, 3 eggs, 1¼ cups granulated sugar, and 1 teaspoon vanilla until smooth.
4. In a separate bowl whisk 3 cups all-purpose flour, 2 teaspoons cinnamon, 1 teaspoon baking soda, ½ teaspoon cream of tartar, and 1 teaspoon salt until evenly combined.
5. Combine the dry ingredients into the wet mixture and stir until fully mixed; batter will be thick.
6. Grate 2 cups fresh zucchini with a box grater and do not dry it; gently fold the wet grated zucchini into the batter until evenly distributed.
7. In a small bowl stir together ½ cup granulated sugar, 1 teaspoon cinnamon, and ¼ teaspoon cream of tartar to make the topping.
8. Divide the batter between the two loaf pans, filling each halfway.
9. Sprinkle 2 tablespoons of the cinnamon-sugar topping onto each pan.
10. Top with the remaining batter in both pans, then sprinkle the remaining topping evenly over both loaves.

11. Bake 45–50 minutes at 350°F, or until a toothpick or clean knife inserted in the center comes out clean.

12. Cool the loaves completely on a wire rack before slicing.

Tips for Tender, Flavorful Bread

• Keep the zucchini wet when you add it; don’t drain it. The moisture keeps the bread tender and stops it from getting dry or crumbly.
• Cream of tartar is the game-changer here — it creates that true snickerdoodle flavor in both batter and topping.

• Using coconut oil adds a subtle natural sweetness you won’t get from regular oil, so you can cut back on sugar a bit. If you swap the oil, remember to add a little extra sugar.

• Don’t bother drying the zucchini after grating—it’s part of the recipe’s magic that helps with moisture and texture.
• Use a box grater to shred your zucchini. It takes just a few minutes and you don’t need fancy equipment.
• Always cool completely before slicing for clean, pretty pieces.
• If you can, wait to eat the bread until the next day. The flavor deepens and texture softens overnight, making it even more delicious.

Mix-Ins, Swaps, and Variations

• Want mini loaves? Bake at 350°F and start checking for doneness around 20 to 22 minutes.
• No coconut oil? Substitute with 1 cup of canola or vegetable oil and bump the sugar to 1¾ cups to keep the sweetness right.
• Try coconut sugar instead of white sugar for a bit richer, warmer flavor.
• This batter works great for muffins! Fill muffin tins and bake at 350°F for 22–25 minutes, or 18 minutes for mini muffins. Check with a toothpick for doneness.

Storing, Freezing, and Shelf Life

Before storing, make sure your loaves have cooled completely. Wrapping warm bread traps moisture and makes the crust soggy.

• Room temperature: Wrap your bread tightly in plastic wrap or put it in an airtight container. It’ll keep well for 2–3 days. Trust me, it tastes best on the second day.
• Refrigerator: For longer freshness, wrap tightly in plastic wrap or foil and store in an airtight container. It’ll keep for about 5–7 days. Just let it come to room temp or warm it up a bit before eating.
• Freezing: After cooling completely, wrap your loaves in plastic wrap and foil, or slice and freeze individual pieces wrapped in plastic and sealed in freezer bags. It’ll stay good up to 3 months.

Thawing and reheating:

• Thaw: Let frozen slices thaw at room temp for a couple of hours or overnight in the fridge. Whole loaves do best thawed overnight in the fridge.
• Oven: Warm slices or a thawed loaf in a 300–325°F oven for 8–15 minutes.
• Toaster/toaster oven: Toast slices until warm and slightly crisp on the edges.
• Microwave: Microwave a slice for 15–30 seconds, but be careful not to overheat or it can get gummy.

Make-ahead tip: Since this makes two loaves, bake both and freeze one for later, or bake a day ahead for even better flavor and texture.

Common Questions Answered

Can I freeze snickerdoodle zucchini bread?

Absolutely! Cool your loaves completely, wrap them well, and freeze for up to three months. Baking mini loaves or muffins means you can freeze and thaw smaller portions, which is super handy.

Does coconut oil make it taste like coconut?

Not at all. Coconut oil adds a gentle, natural sweetness but doesn’t taste like coconut in this bread. If you prefer, swap it for canola or vegetable oil, just add a bit more sugar.

Can I substitute something for cream of tartar?

You can. Use ½ teaspoon of baking powder to replace cream of tartar in the batter. For the topping, just leave it out — no substitute needed. The bread won’t have that classic snickerdoodle flavor, but it will still taste great.

Can I make snickerdoodle zucchini bread muffins?

Yes! Use a standard muffin tin and bake at 350°F for 22 to 25 minutes, or 18 minutes for mini muffins. Check with a toothpick to know when they’re done. This recipe yields about 22 standard muffins or 64 mini muffins.

Can I use frozen zucchini?

Yes, but thaw it completely first. Lightly pat it dry to remove some excess water, but don’t dry it out fully. You want some moisture to keep the bread tender.

Why does snickerdoodle zucchini bread taste better the next day?

The flavors get time to meld and develop, and the texture softens up. So baking it ahead is a great way to get the best results — and it makes for a wonderful homemade gift too!