Costco This Week: New Bar Cake Debuts and More

August 29, 2026
Food

Among Costco’s bakery offerings, the bar cake stands out as the most striking creation. It delivers a surprisingly practical way to serve dessert, sidestepping the hassle of dividing a round cake into slices. Why must we segment a circle anyway? Costco consistently rolls out seasonal bar cakes, and this newest version hits the mark with precision. Of course, I’ll mix in a touch of whimsy here, so here’s the latest bar cake plus a handful of other new items arriving at Costco this week.

Magic Spoon Protein Treats Variety Pack

Magic Spoon has introduced a Costco-exclusive assortment of their protein-rich goodies, featuring two flavors: chocolate peanut butter and marshmallow. Think of two childhood favorites upgraded with a boost of protein. This setup lets you enjoy a touch of nostalgia while still hitting your macros, or slip a protein boost into your kid’s routine. Do you need to worry about that last part? I’m not exactly an expert on parenting.

Doughlicious Chocolate Chip Cookie Dough & Gelato Bites

This is quite the revelation. Cookie dough and gelato come together in a single bite. Yes, please! These bite-sized treats are the perfect end-of-day indulgence when you crave a little sweetness before lights-out. A bulk bag from Costco contains 25 spheres, which, by my estimates, should carry you through about three days’ worth of evenings.

Tuscanini Pitted Olives

Now for Doughlicious’ opposite end of the spectrum—the convenient, poppable pitted olives from Costco! Packaged in a dainty single-serving size, this little bundle is wonderfully handy. I kept daydreaming about ways to sneak more olives into my routine, no matter where I am. Picture the crowd at the ballgame reacting with envy when you pull these from your pocket!

Fischer & Wieser Farmstead Maple Pumpkin Butter and Pecan Apple Butter

Costco is offering two 18.5-ounce jars of maple pumpkin butter and pecan apple butter from Fischer & Wieser Farmstead. That’s a substantial stash of fruit butter in one purchase! I suspect these will be tempting enough to disappear from the fridge faster than you expect. Slather them on your morning toast or spoon them over pork chops for dinner.

Kirkland Signature Pumpkin Bar Cake

Costco continues to surprise me. I had drafted an informal release timeline for their bar cakes, and yet another variant slips into the lineup that I hadn’t even anticipated. Egg on my face, sure—but the upside is clear: this week we can enjoy the Kirkland Signature pumpkin bar cake, so let’s call it a draw.

Daniel Brooks

I cover everyday products with a practical eye, from kitchen tools and home essentials to smart gadgets and consumer trends. My goal is to help readers understand what is genuinely useful, what is worth the price, and what deserves a second look before buying.