When I joined Costco, the hardest part was deciding which bulk buys deserved space in my first cart. These 12 pantry staples are the practical starting points I’d stock first, with prices and household-fit guidance to make the choices easier.
1. Kirkland Signature, Extra Virgin Italian Olive Oil, 2 L – $30.99
A good first Costco cart starts with an oil you will actually use every day. This 2-liter bottle handles sautéing and dressings, then doubles as a finishing oil when dinner needs a little richness.
Taste: The flavor is sweet and floral with a smooth, buttery character. It has enough presence for dipping or finishing without overwhelming a simple dish.
Make It Better: Store it in a cool, dark place, and drizzle it over pasta or tomatoes just before serving.
Parting Thoughts: Everyday cooks should find this one of the easiest bulk purchases to justify.
2. Kirkland Signature Organic Creamy Peanut Butter – $9.79-$12.18
On rushed mornings, these two 28-ounce jars cover toast, oatmeal, smoothies, and packed sandwiches. The simple two-ingredient formula is especially useful for households that finish peanut butter quickly.
Taste: It has a pure, naturally sweet peanut flavor without additives getting in the way. The texture is creamy, though the separated oil needs a thorough stir.
Make It Better: Stir the jar completely when first opened, then spoon some into oatmeal or blend it into a smoothie.
Parting Thoughts: Frequent peanut-butter eaters get the most value here, while occasional users may find two jars excessive.
3. Kirkland Signature Whole Grain Rolled Oats, 10 LBS – $9.99
Ten pounds sounds ambitious until oats start showing up in breakfast, cookies, and savory recipes. For a household that eats them regularly, this bag builds a dependable breakfast base and reduces constant restocking.
Taste: Cooked oats have a hearty, slightly nutty flavor. They become creamy while retaining a satisfying chew.
Make It Better: Transfer the oats to an airtight container, then use them for overnight oats, cookies, or as a meatloaf binder.
Parting Thoughts: The bag is worth the pantry space for regular oatmeal households, but not for anyone who only bakes occasionally.
4. Kirkland Signature Solid White Albacore Tuna in Water, 7 oz, 8-count – $19.99
For lunches that need to happen with almost no planning, this eight-count tuna pack is a reliable shelf-stable protein. The 7-ounce cans work for sandwiches, salads, or quick patties when the refrigerator looks bare.
Taste: The albacore has a clean, full tuna flavor that stands apart from softer grocery-store options. Its firm, meaty white chunks hold together well after draining.
Make It Better: Fold it gently with your dressing and add-ins so the solid pieces stay chunky rather than turning pasty.
Parting Thoughts: Lunch-packers and protein-focused households will appreciate this more than anyone who rarely opens canned fish.
5. Kirkland Signature, Thai Hom Mali Jasmine Rice, 25 lbs – $27.99
That 25-pound bag earns its keep in homes where rice anchors curries, stir-fries, bowls, and simple sides. It is a serious commitment for one person, but an excellent foundation for families that cook rice several times a week.
Taste: This jasmine rice carries a delicate floral aroma and a lightly sweet flavor. Once cooked, it is light and fluffy with a slightly sticky texture.
Make It Better: Rinse it before cooking and transfer the large bag into an airtight dispenser for easier everyday use.
Parting Thoughts: Rice-loving families can buy confidently; infrequent rice eaters should choose a smaller bag elsewhere.
6. Kirkland Signature Pure Vanilla Extract, 16 fl oz – $14.99
Bakers get an unusually large supply of pure vanilla in this 16-fluid-ounce bottle. It belongs in the first pantry stock-up only if cookies, cakes, oatmeal, or sweetened coffee appear regularly at home.
Taste: The extract contributes a rich, aromatic real-vanilla flavor. Texture is not the draw; it blends into batters and drinks rather than adding body.
Make It Better: Keep it somewhere cool and dark, and try a small amount in oatmeal or coffee as well as baked goods.
Parting Thoughts: Regular bakers will use this happily, whereas non-bakers can leave the oversized bottle behind.
7. Garofalo, Organic Pasta, Variety Pack, 17.6 oz, 6-Count – $11.99
Weeknight pasta gets less repetitive when the cupboard holds casarecce, penne ziti rigate, and gemelli. With two bags of each shape, this six-count pack supports quick dinners without locking you into one style.
Taste: The pasta has an authentic Italian durum flavor and a firm al dente chew. Each shape holds sauce well, giving even a simple dinner satisfying structure.
Make It Better: Match chunkier sauces with casarecce or gemelli and use the penne ziti rigate for baked or saucy dishes.
Parting Thoughts: For anyone who relies on pasta when plans fall apart, this variety pack is a sensible first-cart addition.
8. Kirkland Signature Organic Pure Maple Syrup, 33.8 oz – $14.99
Weekend pancakes are only the beginning for this 1-liter jug of organic maple syrup. It also works as a pantry sweetener for oatmeal, baking, and glazes, making the large size easier to finish than it first appears.
Taste: The syrup has a smooth, rich amber-maple flavor. Its pourable texture spreads readily across pancakes or stirs easily into recipes.
Make It Better: Refrigerate it after opening and whisk a little into a glaze for a savory dish when breakfast is not on the menu.
Parting Thoughts: Pure-maple households should love the large jug, though basic pancake-syrup loyalists may not need it.
9. Kirkland Signature Organic Unbleached All Purpose Flour, 10 lbs, 2-count – $19.99
Two 10-pound bags make sense for bread makers and frequent bakers, not for someone producing one batch of cookies a year. Milled from organic hard red wheat, this all-purpose flour can cover breads, desserts, and savory cooking.
Taste: The product information does not specify a distinct flavor profile. Its all-purpose texture is designed to remain versatile across different kinds of baking.
Make It Better: Keep it sealed in a cool, dry place; splitting the two bags also makes it easier to store one in the freezer.
Parting Thoughts: Serious home bakers get a useful workhorse, but light users risk tying up storage with flour.
10. Imperial Sugar Granulated Pure Cane Sugar – $7.59-$16.29
Granulated sugar is not glamorous, but a 10- or 25-pound bag prevents inconvenient restocks when baking season arrives. It is best suited to busy bakers or larger households that can realistically work through a bulk supply.
Taste: The pure cane sugar delivers clean, straightforward sweetness. Its granulated texture makes it suitable for everyday sweetening and baking.
Make It Better: Move it into an airtight container so the large bag stays protected and easier to scoop from.
Parting Thoughts: Buy the bulk bag when sugar moves quickly in your kitchen; otherwise, the size can become more burden than bargain.
11. Kirkland Signature Shelled Pistachios, Salted, 1.5 lbs – $20.99
A ready-to-eat nut keeps the pantry useful between proper meals, and this 1.5-pound bag skips the nuisance of shells. Beyond snacking, the roasted salted pistachios can add substance to salads, baked goods, or desserts.
Taste: They are savory and salty without losing their pistachio flavor. The roasted nuts have a crisp, crunchy bite that makes a small handful satisfying.
Make It Better: Portion some for grab-and-go snacks, then reserve the rest for scattering over yogurt, salads, or desserts.
Parting Thoughts: Snackers who value convenience will enjoy these, while bargain hunters may prefer less-convenient in-shell nuts.
12. Kirkland Signature Organic Ground Saigon Cinnamon, 10.7 oz., 2-count – $21.99
Bold Saigon cinnamon belongs on the shortlist for homes that season oatmeal, coffee, cookies, or pies almost daily. The two-count pack contains 10.7 ounces per container, so casual spice users should think carefully before committing.
Taste: Its flavor is bold, sweet, and distinctly aromatic. The finely ground texture disperses easily through oatmeal, drinks, and baking mixtures.
Make It Better: Keep one container sealed while using the other, and add a small shake to coffee or oatmeal to move through the supply steadily.
Parting Thoughts: Cinnamon devotees can make excellent use of the pair, but occasional bakers are better served by a smaller jar.
