Magic Spoon
Chocolatey Peanut Butter
TL:DR
In 2 Sentences
A nostalgic, crispy cereal–style bar that pairs casein and whey with modern sweeteners (like allulose) and soluble fibers to deliver big sweetness with very little sugar—all at 140 calories. It’s more snap-and-crunch than chewy nougat, which sets it apart from most protein bars.
When to choose Magic Spoon Chocolatey Peanut Butter
Best for a light, sweet pick-me-up between meals or a low-sugar, keto-leaning treat when you want crunch without a heavy 20-gram protein hit. Great if you like cereal-bar nostalgia and can do dairy and peanuts.
What's in the Magic Spoon bar?
Magic Spoon’s Chocolatey Peanut Butter Protein Bar reads like dessert but eats like a light snack. Its protein comes from milk—casein plus whey—so you get a complete amino-acid profile with a steadier, more sustaining release than many plant bars.
The calories are strikingly low at 140, achieved by swapping much of the sugar and starch for allulose and soluble fibers (tapioca fiber and chicory inulin). Carbs sit on the lower side and are designed for steadier energy, while fat comes mostly from peanut butter with a touch of palm oils to keep the bar sturdy.
The chocolate–peanut flavor is built from real peanut butter, alkalized cocoa, and a little peanut extract.
If you’re keto-leaning or simply watching sugar, the 1 gram of sugar and dairy-based protein make this an appealing, snackable option—with the caveat that the sweeteners and fibers are highly refined.
- Protein
- 12 g
- Fat
- 6 g
- Carbohydrates
- 16 g
- Sugar
- 1 g
- Calories
- 140
Protein
1215MIDThis bar leans on milk proteins—casein plus whey protein concentrate—for its 12g of protein. Casein digests slowly while whey is faster, so together you get a complete protein with a longer-lasting, stick-with-you feel; washed casein is very low in lactose, though it’s still not suitable for milk allergies. Protein sits in the lower third for bars, making this more of a light, snackable option than a heavy hitter.
Fat
69LOWFat here comes mainly from peanut butter—mostly unsaturated—plus palm kernel and palm oil, which are more saturated and help the bar hold its shape without hydrogenation. At 6g total, fat is on the low side, so richness is mild; if you’re watching saturated fat, the palm oils are the piece to note. Sunflower lecithin appears only in tiny amounts for texture.
Carbs
1620MIDMost of the 16g of carbs come from non-sugary building blocks: soluble tapioca fiber and chicory-root inulin (both fermentable fibers), allulose (a low-calorie sugar made from corn or beet syrups), and glycerin (a moisture-holding syrup often grouped with polyols), with a little refined tapioca starch for structure. That mix tends to be gentler on blood sugar than cane sugar, and the fiber plus dairy protein should deliver steadier energy rather than a spike-and-crash. If you have a sensitive gut, note that inulin and resistant dextrin can cause gas when eaten quickly or in larger amounts.
Sugar
14LOWSugar is just 1g, mostly the small amount naturally present from peanuts and dairy. Sweetness instead comes from allulose (a low-calorie rare sugar) plus tiny amounts of stevia and monk fruit, with glycerin contributing moisture and a hint of sweetness—so you get a sweet bite without the usual glucose surge. If you’re sensitive to polyols or big fiber loads, keep an eye on how your stomach feels.
Calories
140210LOWAt 140 calories (among the lightest in its class), this bar stays lean by using low-calorie allulose and added fibers to replace much of the sugar and starch. Calories are split largely between protein and a modest amount of fat, with fewer coming from digestible carbs than the total carb number suggests. Translation: dessert-like flavor, snack-size calories.
Vitamins & Minerals
You get a small bump of minerals—about 10% Daily Value of calcium from the milk proteins and a little iron from the cocoa—but this isn’t a fortified multivitamin bar. Think of those as nice extras rather than the main event.
Additives
To create a cereal-treat texture with very little sugar, the recipe relies on several refined helpers: soluble tapioca fiber and inulin for body, allulose for bulked sweetness, glycerin to keep it soft, sunflower lecithin to emulsify, and natural flavors/peanut extract for a stronger peanut note. These are common, GRAS ingredients, but they’re more “manufactured” than whole-food sweeteners; great if you want low sugar and low calories, less ideal if you prefer a minimalist ingredient list.
Ingredient List
Skim cow's milk
Cassava root starch
Corn or beet fructose syrups
Peanuts
Cow's milk whey
Oil palm fruit
Fats and oils
Chicory root
Defatted cacao bean solids
Cassava root
What are people saying?
Sources
Range
“I’ve only had their protein bars, and I think they’re really good! Like a healthier rice crispies.”
“I really like these. They have a nice crunch and only 1g sugar.”
“Magic spoon bars at Costco. They taste like rice krispie treats”
Main Praise
Fans love the texture. Multiple Redditors compare it to a Rice Krispie treat—crisp, a little airy, and fun to eat—and that playful crunch is rare in protein bars.
The Chocolatey Peanut Butter flavor consistently tops the brand’s lineup in taste roundups, with Well+Good calling it worth the hype and Eat This, Not That! naming it a best-in-category crispy pick.
People who track blood sugar also note it’s gentler on their CGMs than a typical sweet snack, which makes sense given the dairy protein and fiber-forward recipe. And for those who want a treat that doesn’t bulldoze their calories, 140 is snack-size without feeling stingy.
Main Criticism
The most common knock: flavor intensity. Several reviewers describe it as mild or even bland, with some detecting a faint whey or stevia aftertaste.
Texture can skew crumbly, especially in warmer weather or at the bottom of a backpack. A few buyers expected a dessert bar and instead met a protein bar wearing dessert clothes—which can feel like a bait-and-switch if you’re seeking a gooey marshmallow square.
And while the sugar is low, the sweetness comes from a modern mix of allulose, stevia/monk fruit, glycerin, and added fibers—fine for many, but not the minimalist-ingredient crowd or those with sensitive stomachs.
One outlier report mentioned a weird mouth sensation after eating a Magic Spoon treat; that’s rare but a reminder that intense sweeteners and fiber blends don’t land the same for everyone.
The Middle Ground
So which is it: a craveable throwback or a functional bar with a party hat?
If you like crunchy, cereal-style bars and want a low-sugar option that still tastes like a treat, this absolutely scratches the itch—plenty of Redditors and a couple of mainstream outlets say as much.
If your taste buds want big, fudgy chocolate or true marshmallow goo, you may find it tame. Texture-wise, the crisp is the win; the crumbly edge is the tax you pay for keeping sugar low and fibers high.
Protein at 12g is meaningful but not muscle-shake territory, so post-lift lifers may want a second bar or a heavier hitter. And those modern sweeteners are a feature, not a bug: they keep sugar down and calories light, but they’re also why some folks note a slight aftertaste or digestive grumbles.
In other words, the truth sits in expectations—treat your brain to nostalgia, treat your body to restraint, and you’ll be happy here.
What's the bottom line?
Magic Spoon’s Chocolatey Peanut Butter Protein Bar is a well-aimed answer to the “I want a treat, but not a sugar bomb” dilemma. It’s crisp, snackable, and pleasantly sweet without leaning on cane sugar. The dairy protein is complete and steady, the calories are friendly, and the flavor is comfortingly familiar—especially if you grew up on chocolate–peanut cereal bars.
It’s not the bar for purists who want short, whole-food ingredient lists, nor for lifters chasing 20–25 grams of protein in a single bite. Expect a lighter, cereal-bar experience with modern sweeteners and fibers doing the heavy lifting.
If that sounds like your lane—and you’re fine with milk and peanuts—this is a smart, nostalgic add to your snack rotation. If not, think of it as the friend you text when you want a fun hang, not a full dinner.