Spend $149.99 to get free shipping

✦ LIMITED EDITION ✦ MARSHMALLOW FLUFF ✦ IN-STOCK

  • Marshmallow Fluff Protein Cookie Butter Powder by Flex — front of tub
  • Marshmallow Fluff Protein Cookie Butter Powder by Flex — nutrition facts and ingredients
  • Marshmallow Fluff Protein Cookie Butter Powder by Flex — serving directions and macros
  • Marshmallow Fluff Protein Cookie Butter Powder by Flex — lifestyle product shot

Marshmallow Fluff Protein Cookie Butter Powder

Free shipping on Continental US orders over $149.99
⚠️ Limited Edition — Selling Fast · Won’t Restock

The exact nostalgic, gooey Marshmallow Fluff flavor you grew up sneaking from the jar — now with 6g of protein per serving.

Same pillowy sweetness. Zero added sugar. Only 46 calories. Zero guilt. Warning: may cause spoon licking.

46
Calories
6g
Protein
0g
Added Sugar
2tbsp
Serving
5 ways to use it
🥣 Protein Yogurt Bowl Stir into Greek yogurt — dessert for breakfast 2 min · 35g protein
🥄 Spread Mix with water for thick, creamy spread in 30 seconds 30 sec · 6g protein
🍓 Fruit Dip Add water and stir — instant high-protein dip 30 sec · 12g protein
🌾 Oatmeal Stir in before or after cooking — no boring breakfasts 1 min · 20g protein
🧁 Bake With It Pancakes, muffins, cookies — marshmallow flavor baked right in 10 min · 28g protein
Flex vs. Regular Marshmallow Fluff
Regular Fluff Flex ✦
Calories / serving 180 46 ✓
Added sugar 44g 0g ✓
Protein 0g 6–9g ✓
Keto-friendly
Gluten-free
Guilt Yes Zero ✓
What customers are saying
★★★★★

“Now I’m sitting on the website waiting for more stock to open up so I can snatch them up. Mine, all mine...”

— Jen R., verified buyer
★★★★★

“Going through 4+ tubs a week is a lot lol; my Amazon order history is cookie butter after cookie butter”

— Delanie B., verified buyer
★★★★★

“I finish approximately 1 tub every two days... I get anxiety if I don’t have at least three tubs stockpiled in my cabinet”

— Sonali P., verified buyer
★★★★★

“Absolutely love these cookie butter powders! They make dieting so much easier and delicious! I can never be without them!”

— Kayla R., verified buyer
★★★★★

“This is the first protein powder I’ve tried that tastes amazing and nothing like your usual powders.”

— Kristina R., verified buyer
New to Protein Cookie Butter?

A concentrated protein powder that transforms everything it touches. Mix with water for a spread, stir into yogurt or oatmeal, blend into smoothies, or bake with it. No chalky texture. No artificial aftertaste. Keto-friendly, gluten-free, low carb — dessert flavor that actually supports your goals.

⚠️ Limited Edition — This Flavor Won’t Come Back

Marshmallow Fluff is a fixed production run. When it’s gone, it’s gone — no restock, no waitlist. Previous Flex limited editions sold out in days. If you want it, now is the time.

Packed with Protein