Food Prices: Butter and Eggs at Trader Joe’s, Aldi, and Costco

April, 2023. Last week, I shopped and compared food prices at Trader Joe’s, Costco, and Aldi’s on butter and eggs. And there's some good news!

Here's what I found on my shopping trip, and the good news, is that som food prices are coming down.

Costco sells its Kirkland store brand of salted and unsalted butter in bulk; four-pound packs for $11.79. You need to look at the unit price, which will tell you how much you are paying per pound. The price per pound for unsalted butter at Costco is $2.95. Costco sells its large grade A eggs in 18-pack carton, which equates to about .33 cents per egg, or $3.99 per dozen.

Trader Joe’s stocks its name store brand of salted and unsalted butter and both are the same price, $3.99 for one pound. One dozen large grade A white eggs are $2.99.

Aldi’s store brand for butter is Countryside Creamery, and both unsalted and salted were on sale this past week for $2.49 for one pound (wow!), but typically both retail for $3.98. One dozen large brown grade A eggs are $2.13.

So which retailer has the best prices? For butter, you can’t beat Aldi’s sale price. The moral here? Keep an eye out the next time your local Aldi has a discount on butter. And if you have the room in your freezer (and your budget), you might consider stocking up. Aldi’s still comes out on top when you take the take the sale price out of the equation, but only by a few cents.

Aldi wins again on the price of one dozen large eggs, coming in $1.86 to $0.86 cents cheaper than Trader Joe’s and Costco. And Aldi also wins on the price of one-dozen grade A eggs, coming in at $1.50 to $0.46 cents cheaper.