Costco Banana Nut Loaf Review

A little bit sacrilegious.

You should probably try this Banana Nut Loaf from Costco. Probably.

(No, I don’t work for Costco.)

I mean. It’s not as good as my mom’s banana nut bread (what is???), but it’s pretty good for supermarket fodder.

A slice of Banana Nut Loaf from Costco, sitting on a white plate.

Honestly, the ingredients were the reason I bought this. I’m impressed by how straightforward and, errr, “homemade” they are. Butter, bananas, and walnuts, without fake garbage or nasty oils. I’ve railed against the trashy ingredients in most grocery store desserts, so I was stopped in my tracks by how wholesome and simple Costco’s label is. This is surprisingly similar to homemade banana bread.

It feels sacrilegious to say that, but here we are.

A sliced cross-section of a cake of Costco Banana Nut Loaf, sitting on a burgundy napkin.

The loaf itself is lightly sweet and fantastically moist. But also dense and substantial — like a pound cake. From the prominent brown texture within the crumb, it looks like very, very ripe bananas were used (just like mom!). My bread tasted freshly baked, with a slight crispness at the edges of the sugar-browned crust. There aren’t tons of walnuts inside — and they are finely chopped — but I was pleased to find them crisp and crunchy. Not flaccid or stale. I hate stale nuts.

The garnish walnuts are even better. I am not always a walnut fan — because rancid walnuts abound in many baked goods. But that wasn’t the case here. The top of my loaf was crusted with a generous layer of fresh, crispy, flavorful walnut chunks. Worthy walnuts. I respect these walnuts.

Fingers holding a bite of Costco Banana Nut Loaf against a gray background.

Costco’s banana loaf comes in a metal pan inside a box. I was able to slice it inside the pan, and easily lift the servings out. BUT, I also discovered I could gingerly remove the whole loaf from the pan, which looks much nicer for entertaining. This is a sturdy loaf — it cuts crisply, and holds together without crumbling.

Ingredients from the label on a package of Kirkland Signature Costco Banana Nut Loaf.

Ingredients in Costco Banana Nut Bread

In the grand scheme of things, this is a meritorious ingredient list:

Bleached Enriched Wheat Flour
Sugar
Bananas
Eggs
Whole Milk
Walnuts
Butter
Natural Banana Flavor
Baking Soda
Sea Salt
Vanilla Extract

The only item I’m not thrilled about is the “Natural Banana Flavor.” You can read more about where “natural flavors” come from in this article.

A hand holding an aluminum pan of Banana Nut Bread from Costco.

Servings and Size

Costco’s Banana Nut Loaf costs $6.99 for a two-pound package. I’d hazard you could get 8 servings at least from this loaf, which means each serving would cost 87 cents.

The Costco item # is 1759778. This is a “Kirkland Signature” (store brand) bakery item.

A slice of Banana Nut Bread from Costco, sitting in the center of a large white plate on a wooden table.

Shelf Life

My loaf had a sell-by date roughly 4 days after purchase, but I refrigerated it (in the metal pan), and it stayed moist and fresh for over week. The crust was no longer crisp, but didn’t taste stale, either. I like to warm my slices in a toaster oven or skillet, which helps them taste even fresher. I also enjoy this bread served with butter. Of course. Butter makes everything better.

The End.

More Reviews of Costco Desserts You Might Like (or Hate)

Check out these other reviews of Costco bakery desserts I’ve written:

Author’s note: I was not paid or compensated to review this banana nut bread, and I have no affiliation with Costco.