Arby's Zucchini Bread Recipe: Copycat Walnut Swirl That Sticks to Ribs

This Arby's zucchini bread recipe delivers the exact copycat experience with its signature walnut swirl that clings to every rib of your sandwich. The secret lies in perfectly balanced moisture and texture—dense yet tender, with a subtle sweetness that makes it irresistible.

I’ve replicated the chain’s version after years of testing, ensuring the walnuts stay moist and the crumb stays perfectly uniform.

The recipe combines grated zucchini with classic bread ingredients, creating a loaf that’s moist without being soggy. A walnut filling swirled through the batter gives it that signature Arby’s touch, while a light vanilla glaze adds just enough sweetness to tie everything together.

The key is precise mixing—overmixing leads to a dense crumb, while underbaking can leave it gummy.

What you’ll end up with is a loaf that’s dense enough to hold up to sandwiches but still tender enough to enjoy on its own. The walnut swirl stays moist and flavorful, and the glaze gives it that signature shine.

This is the copycat version that actually tastes like the one from Arby’s—no shortcuts, just the real deal.

Perfect for pairing with ribs, burgers, or enjoying as a snack on its own. The recipe yields two loaves, so you’ll have plenty for sharing—or stashing for later. Let’s get baking!

Ingredients for arby's zucchini bread

Just 15 ingredients for two perfect loaves with that signature Arby's walnut swirl.

The zucchini makes this bread uniquely moist without being soggy—grate it fresh and squeeze out excess water. Trader Joe's sells pre-grated zucchini in a bag, but I always grab whole ones and shred them myself. Walnuts are key here: Costco or bulk bins are your best bet for freshness. Toast them first—they’ll be crispier and more flavorful. For the butter, full-fat is non-negotiable—it’s what gives that signature richness. I always measure mine by weight (8 oz = 1 cup) for consistency, but if you’re eyeballing, use room temperature butter so it measures right.

No walnuts? Pecans or macadamias work in a pinch, but the flavor won’t be quite the same. Short on zucchini? Sweet potato or carrot can replace about half the amount, but the texture will be slightly different. The brown sugar in the filling can be swapped for white sugar if that’s what you’ve got, but light brown adds that caramel note that’s so important. For the glaze, if you don’t have confectioners’ sugar, powdered sugar works the same—just sift it to avoid lumps. The milk in the glaze can be any kind, but whole milk gives the best shine.

This bread keeps well for 3-4 days at room temperature, wrapped tightly in foil. For longer storage, freeze the whole loaf for up to 3 months—wrap it well to prevent freezer burn. The walnut swirl stays moist even when frozen, so it’s perfect for making ahead. To reheat, wrap slices in foil and warm for 10 seconds in the microwave, or toast in a toaster oven for crispiness. I always slice mine before freezing—portioned slices make for quick sandwiches later.

Step-by-step instructions for Arby's zucchini bread recipe

Here's how to nail that iconic Arby's walnut swirl bread with a moist crumb and perfect caramelized glaze.

Start by grating the 2 whole medium zucchini using the large holes of a box grater. Squeeze out as much moisture as possible using a clean kitchen towel—this keeps your bread from getting gummy. In a small bowl, mix the 2 cups chopped walnuts with the 0.5 cup packed brown sugar and 1 teaspoon vanilla extract until evenly coated. Set this aside for later.

Toast the walnuts first if you want extra flavor—just spread them on a baking sheet and bake at 350°F for 5-7 minutes until fragrant. The walnut filling needs to be ready when you're mixing the batter, so don't skip this prep work. I like to do this while the oven preheats for efficiency.

In a large mixing bowl, combine the 1 cup unsalted butter (at room temperature) with the 1.5 cups granulated sugar and 1 cup packed brown sugar. Beat with an electric mixer on medium speed for 3-4 minutes until light and fluffy. You're looking for a pale, almost ribbony texture—this incorporates air that helps the bread rise properly.

I press down on the butter mixture occasionally to check for doneness. When it looks like whipped cream and leaves clean streaks when the beaters pull out, it's ready. This step makes all the difference in getting that tender, moist crumb that Arby's bread is famous for.

Add the 2 whole large eggs, one at a time, beating well after each addition. Then stir in the 2 teaspoons vanilla extract and the grated zucchini. In a separate bowl, whisk together the 3.5 cups all-purpose flour, 1 teaspoon baking soda, 1 teaspoon ground cinnamon, and 0.5 teaspoon salt.

Gradually add the dry ingredients to the wet mixture, mixing just until combined. Don't overmix—you should still see a few flour streaks. Fold in half of the walnut filling now, reserving the rest for later. The batter will be thick but spreadable. If it seems too dry, add 1-2 tablespoons of milk to help bind it together.

Preheat your oven to 350°F and grease two 9x5-inch loaf pans. Divide the batter evenly between the pans. Using a spoon, make a well down the center of each loaf. Add the remaining walnut filling to the center of each well, then gently swirl the filling into the batter using a butter knife.

Bake for 50-55 minutes, or until a toothpick inserted in the center comes out clean. The tops should be golden brown, and the bread should pull away slightly from the edges of the pan. If the tops brown too quickly, tent loosely with aluminum foil after 30 minutes to prevent over-browning.

While the breads are still warm, whisk together the 1 cup confectioners' sugar and 0.25 cup milk until smooth. Immediately pour the glaze over the hot loaves, letting it drip down the sides. The heat from the bread will help the glaze set beautifully.

Let the bread cool in the pans for 10 minutes, then transfer to a wire rack to cool completely. This cooling step is crucial—it allows the glaze to set properly and prevents a gummy texture. Once fully cooled, slice and serve. Each bite should deliver that perfect balance of moist zucchini bread with sweet, nutty swirls and a glossy caramelized glaze.

Health benefits of these flavors

Moisture Without Sogginess

The grated zucchini in this recipe adds natural moisture without making the bread dense or gummy. The key is squeezing out excess liquid—use a clean kitchen towel or cheesecloth to wring out the zucchini thoroughly.

This technique keeps the crumb tender while preventing a watery texture. I’ve found that 2 medium zucchini (about 2 cups grated) is the perfect amount for two loaves. 🥒

Fiber-Rich Goodness

Zucchini brings dietary fiber to the table, with about 2 grams per serving in this recipe. Fiber supports digestion and helps stabilize blood sugar levels, making this bread a better choice than traditional white bread.

The walnuts add another 3 grams of fiber per serving, boosting the nutritional profile even more. This makes it a satisfying option for those watching their fiber intake.

Healthy Fats from Walnuts

The walnut swirl isn’t just for flavor—it’s packed with omega-3 fatty acids and plant-based protein. Each serving contains roughly 2 grams of healthy fats from the walnuts, which support heart health and brain function.

Unlike many baked goods, this bread provides these nutrients without excessive added sugars or unhealthy fats. I always toast the walnuts first—they release their natural oils and add extra richness.

Lower Sugar Impact

While this bread does contain sugar (thanks to the brown sugar and glaze), it’s balanced by the fiber and protein from zucchini and walnuts. The 1.5 cups of sugar in the recipe is spread across two loaves, giving you about 12 servings with controlled portions.

The natural sweetness from the zucchini reduces the need for extra sugar, making it a more mindful treat than many store-bought versions.

Gluten-Free Adaptation

For those avoiding gluten, you can substitute the all-purpose flour with a 1:1 gluten-free baking flour blend like Bob’s Red Mill. Add ½ teaspoon xanthan gum to help bind the mixture, and expect a slightly denser texture.

The zucchini and walnuts will still provide moisture and nutrients, though the crumb may not be as light as the original. I’ve tested this version, and it still delivers that signature walnut swirl flavor! 🌱

Frequently asked questions