M&M'S Mega Peanut Butter Chocolate Candy, Sharing Size, 8.6

The Verdict

Opening: The Bigger Question

Let’s be honest — when M&M’S announced “Mega” versions of their classic candies, the immediate reaction was skepticism. Bigger candy usually means more wax, less flavor, or a gimmick that wears off by the third piece. After a full bag of the Mega Peanut Butter variety, I’m happy to report this isn’t that. But there are tradeoffs worth knowing before you add this 8.6-ounce sharing bag to your cart.

What You Actually Get

The 8.6-ounce bag delivers roughly 15 pieces per serving (about 1/2 cup), totaling around 10 servings per bag. Each candy is noticeably larger than the classic version — think a thick, substantial disc rather than a thin oval. The shell is still that iconic candy coating, but it’s proportionally thinner relative to the filling. That matters.

Performance: Where It Wins

The peanut butter filling is the star here. It’s dense, slightly salty, and has actual texture — not the overly sweet, pasty center you get in regular peanut butter M&M’S. The thinner shell means you taste chocolate first, then the peanut butter hits with real presence. It’s closer to eating a Reese’s piece than a standard M&M, which is a genuinely different experience.

Heat matters with these. At room temperature, the filling is firm but creamy. Pop them in the fridge for 15 minutes and they get a satisfying snap when you bite through. Leave them in a warm car and they’ll get messy — the filling softens faster than regular M&M’S, so plan accordingly.

What Buyers Keep Saying

The 4.6-star rating across 229 ratings reflects real enthusiasm. One reviewer noted, “I didn’t think they could improve on the original, but the bigger size gives you more of the peanut butter flavor that gets lost in regular M&M’S.” Another said, “Dangerously good. I finished half the bag in one sitting without realizing.” The consistent theme is that the larger format actually enhances the flavor balance rather than diluting it.

Where It Falls Short

The price per ounce is the biggest sticking point. You’re paying a premium — often 20-30% more than regular peanut butter M&M’S for the same weight. That’s a lot for what’s essentially a format change, not a new recipe.

The portion control problem is real. A “serving” is only about 15 pieces, and they’re so satisfying that stopping there takes genuine willpower. The resealable bag helps, but it’s a false comfort — you’ll likely finish this faster than you expect.

Finally, if you’re someone who prefers the classic thin-shell-to-filling ratio, these might feel too soft. The mega format leans heavily into the peanut butter, so if you’re a chocolate-first person, stick with the originals.

Who Should Buy This

• Peanut butter purists who want the filling to be the main event
• Snackers who find regular M&M’S too small to actually taste the filling
• Party hosts looking for a conversation-piece candy that delivers on taste, not just novelty

Skip it if you’re on a budget, strictly counting calories, or prefer the classic M&M’S texture profile.

FAQ

Q: Are these actually bigger than regular M&M’S, or is it just packaging?
A: Genuinely bigger — roughly 40% larger by volume. The difference is obvious when you see them side by side.

Q: Do they taste like peanut butter M&M’S, just bigger?
A: Not exactly. The flavor balance shifts because the filling-to-shell ratio changes. You get more peanut butter flavor and a softer texture overall.

Q: How long do they stay fresh after opening?
A: The bag has a solid resealable seal. Stored in a cool, dry place, they’ll last 2-3 weeks without going stale. They won’t last that long in your house, though.

The Verdict: 4.6/5 — Buy it

Buy it if you want a genuinely upgraded M&M experience with a richer peanut butter center and don’t mind paying a small premium for the larger format.

Skip it if you’re watching your wallet per ounce or prefer the snappy, chocolate-forward bite of classic M&M’S.

These are the first “mega” candy I’ve tried that actually justifies the name. Just don’t blame me when the bag disappears faster than you planned.

Where to Buy

👉 Check Price on Amazon →

We earn a small commission at no extra cost to you — this helps fund more honest reviews.

Last updated: 2026-08-06. Ratings and prices current as of review date. Verify on Amazon before purchasing.