Costco Egg Bites Cooking Instructions: Microwave, Air Fryer, and From Frozen
Costco egg bites cooking instructions come down to one number: 90 seconds in the microwave. That’s it, which is why the back of the package barely elaborates.
But the microwave is also what makes them rubbery, and it isn’t the only way to heat them.
Below is every method with real times — microwave, air fryer, oven, and straight from frozen — plus what changes when you stop treating them like a 90-second problem.
One naming note first: Costco sells these as Kirkland Signature Sous Vide Egg Bites. If your package says Kirkland, you’re in the right place. Same product, same times.
For whether they’re worth buying in the first place, that’s covered in my Costco egg bites review →
The Fast Version
| Method | From refrigerated | From frozen |
|---|---|---|
| Microwave | 60–90 seconds | 2–2.5 min full power, or 3 min defrost + 30 sec |
| Air fryer | 400°F, 8–10 minutes | 400°F, 12–14 minutes |
| Oven or toaster oven | 400°F, 14–16 minutes | 400°F, 20–22 minutes |
Two bites is one serving. Every time below assumes two.
If you’re cooking from frozen, the better move is to move a pack to the fridge the night before and use the refrigerated times instead.
More on that below.
How To Microwave Costco Egg Bites
Put two egg bites on a plate, microwave on full power for 60 seconds, then add time in 15-second increments until they’re hot in the center. Most microwaves land at 75 to 90 seconds.
Start at 60 rather than going straight to 90. Egg protein tightens fast, and the difference between “hot” and “rubbery” is about 20 seconds. You can always add time; you can’t take it back.
Two things that help: cover them loosely with a damp paper towel to keep the steam in, and let them sit for 30 seconds after the microwave stops. The center keeps cooking during that rest, which is why pulling them slightly early works better than nuking them until they’re uniformly hot.
How To Cook Costco Egg Bites In the Air Fryer
Air fryer at 400°F for 8 to 10 minutes, no preheat needed, no oil. This is the method I use when I’m not in a rush, and it’s a different food than the microwave version.
The outside firms up slightly, the edges brown, and the texture goes from soft-uniform to something with structure. It’s the closest these get to tasting like they were made that morning.
Check at 8 minutes. Air fryers vary more than ovens do, and a smaller basket runs hotter.
If you don’t have one yet, a basket-style air fryer in the 5–6 quart range is the size that actually fits a family’s worth of food without dominating your counter.
If you’re heating more than two at once, this is the method to use. A microwave does a crowded plate unevenly, but the basket handles four or six as well as it handles two — just don’t stack them.
How To Cook Costco Egg Bites In the Oven
Oven or toaster oven at 400°F for 14 to 16 minutes, on a small sheet pan.
This is the method I use least, because 15 minutes for two egg bites is hard to justify on a weekday. It earns its place when you’re heating six or more at once, or when the oven is already on for something else.
How To Cook Costco Egg Bites From Frozen
The way I actually do this: move a sealed pack from the freezer to the fridge the night before. In the morning they cook exactly like refrigerated ones — 60 to 90 seconds in the microwave, or 8 to 10 minutes in the air fryer — and they come out better than any straight-from-frozen method.
It costs you nothing but remembering, and it solves the problem below before it happens. An overnight thaw brings the whole bite to one temperature, so there’s no cold center to chase.
If you didn’t plan ahead, every method still works from frozen with added time.
Microwave, full power: 2 to 2.5 minutes, checking at the 2-minute mark. Fast, and the least even result you’ll get — hot edges, cool center. Rest it a full minute before deciding it needs more time.
Microwave, defrost or 50% power: the better way if you’re using the microwave from frozen. Run 3 minutes on defrost or 50% power, then 20 to 30 seconds at full power to finish. It takes about a minute longer and the texture is meaningfully better.
Why the difference: ice doesn’t absorb microwave energy the way liquid water does. At full power the already-thawed outside heats fast while the frozen center lags behind, which is what gives you a scalding edge and a cold middle. Defrost settings pulse the power so heat has time to conduct inward instead of overcooking the outside. That’s the same mechanism behind the rubbery texture in the next section — you’re just running into it harder from frozen.
Air fryer: 400°F for 12 to 14 minutes. This is the best from-frozen method by a wide margin. The longer, gentler heat brings them back closer to their original texture than the microwave manages.
Oven: 400°F for 20 to 22 minutes.
Why Your Egg Bites Come Out Rubbery
Almost always heat, not time.
Sous vide egg bites are cooked gently and slowly on purpose — that’s what gives them the custardy texture. A microwave does the opposite: it heats water molecules fast and unevenly, which squeezes the protein network tight and pushes moisture out. That’s the rubber.
Three fixes, in order of how much they help:
Stop 15 seconds earlier than you think. Carryover heat finishes them during the rest. Most rubbery egg bites were fine 15 seconds before they came out.
Cover them. A damp paper towel keeps steam around the bites instead of letting it escape, which keeps the surface from drying into a skin.
Use the air fryer when texture matters. If the microwave version has been disappointing you, this is the change worth making. It takes eight more minutes and it’s a noticeably better breakfast.
Can You Freeze Costco Egg Bites?
Yes, and it takes no effort at all, because they’re already packaged for it.
The box holds individually sealed 2-packs. Put the unopened packs straight into the freezer — no bagging, no wrapping, no single-layer nonsense. Each pack is its own sealed portion, so you pull one out, cook it from frozen, and never touch the rest.
They keep about 3 months this way before the texture starts to soften. Reheat straight from frozen using the times above.
The only time you need to do anything extra is if you’ve already opened a pack and have a stray bite left. Wrap that one and use it within a couple of days rather than freezing it — a single opened bite doesn’t freeze well and it isn’t worth the container.
How To Store Costco Egg Bites
Refrigerated, unopened: leave them in the sealed packs until you want them. They keep to the date on the box.
Refrigerated, opened: an opened pack means one leftover bite. Cover it and eat it within a day or two.
Frozen: unopened packs, straight in, up to about 3 months.
Already reheated: eat them. A reheated egg bite that goes back in the fridge and gets reheated again is a noticeably worse food.
Kirkland vs Costco Egg Bites: Are They the Same?
Yes. Kirkland Signature is Costco’s store brand, so “Costco egg bites” and “Kirkland egg bites” are the same product with two names. Every instruction on this page applies to both.
The two varieties are Uncured Bacon & Gouda and Egg White with Cheese Trio & Roasted Red Pepper.
The cooking times are identical — the egg white version runs very slightly drier, so if you’re microwaving those, start at 60 seconds and be more careful about the last increment.
What I’ve Learned Reheating These Over and Over
The rest matters more than the timer
I spent months adding 15 seconds when the center felt cool, when the fix was letting them sit on the counter for 30 seconds instead. Carryover heat does the last of the work.
The air fryer is worth the eight extra minutes
I used the microwave exclusively for a long time because the package implies that’s the method. Switching to the air fryer on the mornings I have time changed how much I like these.
Thawing overnight beats every from-frozen method
The from-frozen microwave version is the least reliable one — hot edges, cold middle, every time.
I stopped fighting it and started moving a pack to the fridge the night before.
They cook like fresh ones in the morning and the texture is noticeably better. This is the single change that made these a regular breakfast instead of an occasional one.
If you do cook from frozen, the hot-edges problem is usually a resting problem, not a cooking-time problem. Give it a full minute before adding time.
Two is a serving, but it isn’t a breakfast
On their own they’re a light breakfast — check the package for the variety you bought. Paired with fruit or avocado toast they hold until lunch. Alone, they don’t.
What To Eat With Costco Egg Bites
They’re a component, not a meal. What I actually pair them with: fruit, avocado toast, or a Costco açaí bowl on the mornings I want something cold alongside something hot.
If you like these enough to want them without the Costco run, my copycat Starbucks egg bites are the homemade version, and they need silicone egg bite molds. I’ve also compared whether making them yourself is worth it in homemade egg bites vs. store-bought.
For more breakfasts in this shape, anti-inflammatory breakfast recipes and soft scrambled eggs with cottage cheese are the other two I rotate through.
Costco Egg Bite Cooking FAQs
How long do you microwave Costco egg bites?
60 to 90 seconds for two, starting at 60 and adding 15 seconds at a time. Let them rest 30 seconds before deciding they need more.
How long do you cook Costco egg bites in the air fryer?
400°F for 8 to 10 minutes from refrigerated, 12 to 14 minutes from frozen. No preheat, no oil.
Can you cook Costco egg bites from frozen?
Yes. Microwave 2 to 2.5 minutes, air fryer 400°F for 12 to 14 minutes, or oven 400°F for 20 to 22 minutes. They come out better, though, if you move a pack to the fridge the night before and cook them on the refrigerated times instead.
Should you thaw Costco egg bites before cooking?
You don’t have to, but an overnight thaw in the fridge gives the best texture. It brings the bite to one temperature so there’s no cold center, and then you cook on the standard refrigerated times.
Can you freeze Kirkland egg bites?
Yes, up to about 3 months. They come in individually sealed 2-packs, so put the unopened packs straight in the freezer — no repackaging needed.
Why are my Costco egg bites rubbery?
Overheating, almost always in the microwave. Stop 15 seconds earlier, cover them with a damp paper towel, and let them rest before eating.
Are Kirkland egg bites and Costco egg bites the same?
Yes. Kirkland Signature is Costco’s store brand, so the two names refer to the same product.
How many egg bites is a serving?
Two. That’s how the nutrition information on the package is calculated.
Do you need to add oil or water?
No. They’re fully cooked and contain enough moisture on their own. Adding oil in the air fryer makes the exterior greasy rather than crisp.
Ninety Seconds, Or Eight Minutes Well Spent
The package says microwave, and the package isn’t wrong — 90 seconds gets you a hot breakfast with no thinking involved.
But if you’ve been mildly disappointed by these, the fix isn’t the product. It’s the air fryer and eight minutes you probably have.
PrintCostco Egg Bites Cooking Instructions
How to cook Costco Kirkland sous vide egg bites in the microwave, air fryer, or oven — from refrigerated or straight from frozen, with times for each method.
Ingredients
- 2 Costco Kirkland Signature Sous Vide Egg Bites (refrigerated or frozen)
Instructions
- Thaw first (best results): Move a sealed 2-pack from the freezer to the fridge the night before. In the morning, cook using the refrigerated times below.
- Microwave, refrigerated or thawed: Place 2 egg bites on a plate and cover loosely with a damp paper towel. Microwave on full power 60 seconds, then add 15-second increments until hot in the center. Rest 30 seconds before eating.
- Microwave, frozen (fast): Microwave on full power 2 to 2.5 minutes, checking at 2 minutes. Rest a full minute before adding time. This is the least even method — expect hot edges.
- Microwave, frozen (better): Run 3 minutes on defrost or 50% power, then 20 to 30 seconds at full power to finish. Pulsing the power lets heat conduct inward instead of overcooking the outside.
- Air fryer, refrigerated or thawed: Air fry at 400°F for 8 to 10 minutes. No preheat or oil needed. Best texture of any method.
- Air fryer, frozen: Air fry at 400°F for 12 to 14 minutes.
- Oven, refrigerated or thawed: Bake at 400°F for 14 to 16 minutes on a small sheet pan.
- Oven, frozen: Bake at 400°F for 20 to 22 minutes.
Notes
- Stopping 15 seconds early and resting is what prevents a rubbery texture — carryover heat finishes them. The air fryer gives the best texture of any method.
- To freeze, put the unopened sealed 2-packs straight into the freezer; they keep about 3 months.
- An overnight thaw in the fridge beats every from-frozen method and costs nothing but remembering.
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