Costco Pound Cake Copycat Recipe
Costco’s pound cake is one of those bakery items that ends up in the cart every single time. This copycat version gets you that same dense, buttery crumb and golden crust at home, with ingredients you likely already have.
It slices cleanly, keeps well for days, and costs a fraction of the Kirkland original.
Why I Love This Recipe
The butter and sour cream pull real weight here: the butter gives you that rich, slightly crisp crust, and the sour cream keeps the inside moist for days without making it heavy.
It’s a straightforward bake with no frosting, no filling, nothing to fuss over. Just a loaf that looks and tastes like it came from a proper bakery counter.
This is the version I keep coming back to when I need something that feeds a crowd without any drama.
Recipe Ingredients
- 3 cups all-purpose flour – Spoon and level it; packing the cup leads to a dry loaf
- 1/2 tsp baking powder – Just enough lift without making it cakey
- 1/2 tsp salt – Balances the sweetness; don’t skip it
- 1 cup (2 sticks) unsalted butter, room temperature – Room temp is non-negotiable for a smooth batter; salted butter works if you skip the added salt
- 3 cups granulated sugar – Costco’s version is genuinely sweet; you can drop to 2.5 cups for a less sweet loaf
- 6 large eggs, room temperature – Cold eggs can cause the batter to break; pull them out an hour before
- 1 tsp pure vanilla extract – Use real vanilla; imitation tastes thin here
- 1/2 tsp almond extract – The small amount adds a subtle warmth that rounds out the vanilla
- 1 cup full-fat sour cream – The key to a moist, tight crumb; full-fat Greek yogurt is the closest swap
Variations / Substitutions
- Sour cream swap – Full-fat Greek yogurt works almost identically; the crumb may be very slightly denser but you would barely notice.
- Butter swap – You can replace half the butter with cream cheese for a tangier, slightly softer loaf.
- Almond extract – Leave it out entirely if you are cooking for someone with a nut allergy; the loaf is still very good.
- Lemon version – Replace the almond extract with 2 tsp of fresh lemon zest and add 1 tbsp lemon juice for a bright, citrusy variation.
- Gluten-free – A 1-to-1 gluten-free baking flour (like Bob’s Red Mill) works well here; the texture is slightly more crumbly.
- Lower sugar – Dropping to 2.5 cups of sugar gives you a less sweet loaf that pairs well with macerated strawberries or a simple glaze.
If you enjoy dense, buttery bakes like this one, you might also like the Costco Lemon Loaf Copycat Recipe.
How To Make Pound Cake
Step 1: Cream the Butter and Sugar
Set your oven to 325°F (165°C). In a large bowl, beat the 1 cup of room-temperature butter and 3 cups of granulated sugar together with a hand or stand mixer on medium speed for 4 to 5 minutes. You are not rushing this. The mixture should go from looking grainy and yellow to pale, fluffy, and almost white.
This step is where most of the structure of the loaf comes from. If the butter is too cold, it won’t cream properly and you’ll end up with a dense, greasy result. Pale and fluffy is the visual cue you’re after before you move on.
Step 2: Add the Eggs and Extracts
With the mixer on low, add the 6 eggs one at a time, waiting until each one disappears into the batter before adding the next. Then add the 1 tsp vanilla extract and 1/2 tsp almond extract and mix for another 30 seconds.
The batter might look slightly curdled at this point, especially if your eggs were even a little cold. Don’t worry about it. Once the flour and sour cream go in, it comes back together cleanly.
Step 3: Fold in the Flour and Sour Cream
Add the 3 cups of all-purpose flour, 1/2 tsp baking powder, and 1/2 tsp salt to the bowl. Add the 1 cup of sour cream. Mix on low just until no dry streaks remain, about 30 to 45 seconds. Switch to a spatula and give the batter 3 or 4 folds by hand to make sure the bottom of the bowl is incorporated.
Overmixing at this stage develops the gluten and makes the loaf tough. Stop as soon as the batter looks uniform. It will be thick, smooth, and a little glossy.
Step 4: Bake the Loaf
Grease a 10-cup Bundt pan or two standard 9×5-inch loaf pans thoroughly with butter and dust lightly with flour. Pour the batter in evenly. Bake at 325°F (165°C) for 75 to 85 minutes for a Bundt, or 60 to 70 minutes for loaf pans. The top should be deep golden brown, and a skewer inserted in the center should come out clean.
Tent the pan loosely with foil after the first 50 minutes if the top is browning faster than you’d like. The low oven temperature is deliberate here: it gives the cake time to set through without burning the crust.
Check with a skewer rather than going purely by color. Pound cake holds moisture, so the outside can look done while the center is still wet. You are looking for a completely clean skewer and an internal temperature of around 210°F (99°C).
Step 5: Slice and Serve the Pound Cake
Let the cake cool in the pan for 15 minutes, then turn it out onto a wire rack. Once it has cooled enough to handle, transfer it to a serving board or plate. Slice it with a serrated knife, showing off that amber, close-knit crumb, and serve as is or with a dusting of powdered sugar over the top.
Recipe Tips
- Grease the pan well. Pound cake batter is heavy and sticky. Butter every crevice, then flour the pan and tap out the excess. A Bundt pan in particular will hold onto the cake if you rush this.
- Room temperature really matters. Cold butter and cold eggs both fight you here. If you forgot, set the eggs in a bowl of warm water for 10 minutes and microwave the butter in 5-second bursts just until soft but not melted.
- Use a scale if you have one. 3 cups of flour can vary wildly depending on how you scoop. The target weight is about 360g. Too much flour is the most common reason homemade pound cake comes out dry.
- The crack on top is normal. A split running down the center of the loaf is classic for pound cake. It’s not a mistake; it’s what happens when a dense batter rises and the top sets before the inside finishes expanding.
Bake times by pan (oven at 325°F / 165°C; done at 210°F / 99°C internal temp):
| Pan Type | Size | Bake Time |
|---|---|---|
| Bundt pan | 10-cup | 75 to 85 mins |
| Loaf pan | 9×5-inch (x2) | 60 to 70 mins |
| Mini loaf pans | 5×3-inch (x4) | 40 to 50 mins |
How To Store
- Refrigerate – Wrap the cooled loaf tightly in plastic wrap or store in an airtight container. It keeps well for up to 5 days in the fridge and actually gets slightly more moist on day 2.
- Reheating – A 10-second blast in the microwave brings a cold slice back to life nicely. You can also warm slices in a dry skillet over low heat for about 2 minutes per side for slightly crisp edges.
- Serve cold – Slices straight from the fridge are genuinely good on their own, especially alongside fresh fruit.
What To Serve With Pound Cake
Sliced strawberries macerated with a little sugar and lemon juice are the classic partner: the bright acidity cuts through the richness of the butter. Lightly sweetened whipped cream works for the same reason, adding a cool, airy contrast to the dense crumb. A strong cup of black coffee or an espresso also pairs well, since the bitterness balances the sweetness of the loaf without competing with the vanilla flavor.
Frequently Asked Questions
Can I make this pound cake ahead of time?
Yes. Bake it the day before you need it, wrap it tightly once cool, and store it at room temperature overnight. The texture is actually better on day 2.
Can I freeze pound cake?
Yes. Wrap individual slices in plastic wrap, then place them in a zip-lock freezer bag. They keep for up to 3 months and thaw at room temperature in about an hour.
My cake sank in the middle. What went wrong?
The most common cause is underbaking. Always check with a skewer and aim for an internal temperature of 210°F (99°C) before pulling it from the oven.
Can I make this as cupcakes or a layer cake instead?
The batter is too dense for a light layer cake, but it bakes into excellent pound cake cupcakes at 325°F (165°C) for 22 to 26 minutes.
—
Ingredients
Method
- Beat the 1 cup of butter and 3 cups of sugar together on medium speed for 4 to 5 minutes, until pale and fluffy. Preheat your oven to 325°F (165°C) while you work.
- Add the 6 eggs one at a time on low speed, then mix in the 1 tsp vanilla extract and 1/2 tsp almond extract for 30 seconds.
- Add the 3 cups of flour, 1/2 tsp baking powder, 1/2 tsp salt, and 1 cup of sour cream. Mix on low for 30 to 45 seconds until just combined, then fold by hand 3 to 4 times with a spatula.
- Pour the batter into a greased and floured 10-cup Bundt pan or two 9×5-inch loaf pans. Bake at 325°F (165°C) for 75 to 85 minutes (Bundt) or 60 to 70 minutes (loaf pans), until a skewer comes out clean and the internal temp reads 210°F (99°C).
- Cool in the pan for 15 minutes, turn out onto a wire rack, then transfer to a serving board. Slice with a serrated knife and dust with powdered sugar before serving.
