Crumbl Mallow Thin Sandwich Cookie with marshmallow cookies and cream mousse and brownie pieces

Crumbl Mallow Thin Sandwich Cookie Guide

Crumbl Mallow Thin Sandwich Cookie

Two thin chocolate cookies hold a generous layer of marshmallow cookies-and-cream mousse with fudgy brownie pieces.

Served ChilledChocolate & MallowLimited Flavor
630calories · large sandwich
Not confirmedmini calories
$4.99reference price
Milk · Egg · Wheat · Soymain allergens

Crumbl Mallow Thin Sandwich Cookie Price, Calories & Nutrition Guide

The Crumbl Mallow Thin Sandwich Cookie is a chilled, limited-menu dessert built from two slim cocoa cookies, a fluffy marshmallow cookies-and-cream mousse, and brownie pieces. This independent guide brings the verified 630-calorie nutrition profile together with a reference price, allergen guidance, storage advice, and practical FAQs.

For more Crumbl information, visit the complete cookie guide.

Crumbl Mallow Thin Sandwich Cookie Overview

This dessert takes the visual idea of a familiar chocolate sandwich cookie and turns it into an oversized bakery treat. Unlike Crumbl’s signature thick cookies, the two chocolate layers are intentionally thin. The center is the main event: a substantial ribbon of pale marshmallow mousse flecked with cookies-and-cream crumbs and dotted with soft brownie pieces. It was introduced during a rotating “Thins” menu, so it should be treated as a limited flavor rather than an everyday staple. Check our Crumbl cookies menu guide for broader menu information.

The format makes it easy to recognize but notably richer than a packaged sandwich cookie. One full large sandwich is listed at 630 calories. That total covers the complete assembled dessert, not a quarter-cookie serving. Because the mousse sits directly against both cocoa cookies, freshness and temperature can have a noticeable effect on texture.

Flavor and Texture Review

Expect a sweet, cocoa-forward first bite followed by a creamy vanilla-marshmallow character. The chocolate cookie layers provide a dark baked flavor, while cookie crumbs reinforce the cookies-and-cream profile. Brownie pieces add pockets of denser fudge and make the center feel more substantial than plain creme filling.

Texture is the most distinctive—and potentially divisive—part. The chilled mousse is airy and smooth, but it can soften the thin cookies as the sandwich rests. Fans of soft, cake-like cookies may enjoy that cohesive bite; anyone looking for a crisp snap may find it gentler than expected. The brownie chunks can also make individual bites feel extra rich. For the best balance, let it remain cool and divide it with a sharp knife before serving.

For detailed calorie and nutrient information, Crumbl Cookies nutrition guide.

How the Crumbl Mallow Thin Sandwich Cookie Is Served

The Mallow Thin Sandwich Cookie is served chilled. Cooler temperature helps the mousse stay stable, makes the sandwich easier to cut, and keeps the filling from squeezing out immediately. It is sold as one assembled large sandwich rather than two separate cookie thins. A mini version and mini nutrition panel were not shown in the confirmed listing reviewed for this guide.

Serving tip: Refrigerate until about 5–10 minutes before eating. Slice the sandwich into halves or quarters with a clean, sharp knife for neater portions and a more balanced chocolate-to-mousse bite.

Crumbl Mallow Thin Sandwich Cookie Price and Calories

The reference menu price is $4.99 for the large sandwich, with 630 calories for the complete dessert. Crumbl pricing is set locally and can change with store, taxes, app fees, delivery method, and the weekly menu. Check the ordering app or your selected store before purchasing. No confirmed mini price or calorie value was available, so those fields are intentionally not estimated.

Price Comparison Table

SizeReference PriceCaloriesServing StyleAvailability
Large sandwich$4.99630 calChilledLimited rotating menu
MiniNot confirmedNot confirmedNot listedNot confirmed

Price note: The $4.99 figure is a reference price, not a universal quote. Final price may change by location, tax, delivery method, promotions, and menu week.

Crumbl Mallow Thin Sandwich Cookie Nutrition Facts

The large nutrition values below match Crumbl’s published nutrition listing for the Mallow Thin Sandwich Cookie. Values can still vary slightly because products are assembled in-store and may differ by season, region, ingredient substitution, and finished size.

SizeCaloriesTotal FatSaturated FatCholesterolSodiumCarbohydratesFiberSugarsProtein
Large sandwich63037 g21 g120 mg696 mg79 g0 g58 g5 g
MiniNot confirmedNot confirmedNot confirmedNot confirmedNot confirmedNot confirmedNot confirmedNot confirmedNot confirmed

Nutrition source: Crumbl Nutrition & Allergen Information. A 2,000-calorie daily diet is general guidance; individual needs vary.

Ingredients Overview

Crumbl does not present a full recipe on the menu page, but the product description confirms four major components: thin chocolate cookies, marshmallow cookies-and-cream mousse, cookie pieces, and gooey brownie pieces. A typical build in this category also relies on flour, sugar, fats, eggs, cocoa, dairy ingredients, leavening, salt, and flavorings. Exact formulations can change, so this overview should not replace the store’s current ingredient statement.

Chocolate cookie thinsCocoa-rich baked layers that provide the sandwich structure.
Mallow mousseA fluffy, chilled filling with cookies-and-cream crumbs folded through it.
Brownie piecesSoft fudgy inclusions that deepen the chocolate flavor and add chew.

Allergen Information

Contains: Milk, egg, wheat, and soy.

May contain: Peanuts were identified as a possible ingredient-contact concern in the reference allergen information.

Shared-kitchen warning: Crumbl products are made in an open kitchen. Cross-contact is possible with peanuts, tree nuts, milk, eggs, wheat, soy, and sesame, even when a specific item does not intentionally include every allergen.

  • Not suitable for people who must strictly avoid milk, egg, wheat, or soy.
  • People with peanut, tree-nut, or sesame allergies should consult the selected store’s current allergen details before ordering.
  • Ingredient and allergen information can change with suppliers or substitutions.

Is It Worth Trying?

It is worth considering if you enjoy chilled cookies-and-cream desserts, generous mousse fillings, and soft chocolate cookies. The format feels more like a composed dessert than a simple thin cookie, and the brownie pieces create indulgent pockets throughout the filling. Sharing it can make the sweetness and 630-calorie total easier to manage.

Skip it if you strongly prefer crisp cookies, subtle sweetness, or a lighter snack. It is also a poor choice for anyone affected by its confirmed allergens or concerned about open-kitchen cross-contact. Since the flavor rotates, availability should be checked before making a special trip.

Storage and Serving Tips

Keep the mousse cool

Refrigerate leftovers promptly in an airtight container. For best quality, enjoy within two to three days. Place parchment between cut portions so the filling does not stick to the container.

Do not warm the assembled sandwich

Heating can loosen the mousse and cause it to squeeze out. If the cookie feels too firm straight from the refrigerator, a short 5–10 minute rest at room temperature is enough.

Freeze for longer storage

Wrap portions tightly, place them in a freezer-safe container, and freeze for up to one month for best texture. Thaw in the refrigerator rather than on the counter. Freezing may slightly change the mousse and cookie texture.

Frequently Asked Questions

How many calories are in the Crumbl Mallow Thin Sandwich Cookie?

One complete large Crumbl Mallow Thin Sandwich Cookie is listed at 630 calories. A confirmed mini calorie value was not available.

Is the Mallow Thin Sandwich Cookie served warm or chilled?

It is served chilled so the marshmallow cookies-and-cream mousse stays stable and the sandwich is easier to handle.

What does the Mallow Thin Sandwich Cookie taste like?

It combines cocoa-rich chocolate cookie thins with sweet marshmallow cookies-and-cream mousse and fudgy brownie pieces.

What are the main allergens?

The confirmed allergens are milk, egg, wheat, and soy. Open-kitchen cross-contact with peanuts, tree nuts, and sesame is also possible.

Does it contain brownie pieces and cookies-and-cream crumbs?

Yes. The featured filling includes cookies-and-cream elements and gooey brownie pieces folded into the marshmallow mousse.

What is the current or reference price?

The reference price is $4.99 for a large sandwich, but the actual price may vary by store, taxes, delivery method, and menu week.

How should I store the cookie?

Keep it refrigerated in an airtight container and enjoy it within two to three days. For longer storage, freeze well-wrapped portions for up to one month.

Is the Mallow Thin Sandwich Cookie available every week?

No. It is a limited rotating flavor, so availability depends on Crumbl’s weekly menu and the selected store.

Is there a mini Mallow Thin Sandwich Cookie?

A mini version, mini price, and mini nutrition panel were not confirmed in the sources reviewed for this guide.

Final Verdict

The Crumbl Mallow Thin Sandwich Cookie is an eye-catching chilled dessert for devoted chocolate and cookies-and-cream fans. Its best qualities are the airy mousse, dark cocoa layers, and fudgy brownie accents; its tradeoffs are pronounced sweetness, a soft rather than crisp bite, and a substantial 630-calorie total. Split it, keep it chilled, and treat the $4.99 figure as a location-dependent reference price.

Independent Website Disclaimer

CrumblCookiesMenu.us is an independent informational website and is not affiliated with, endorsed by, or sponsored by Crumbl. Crumbl and related marks belong to their respective owners. Menu items, prices, ingredients, nutrition, allergens, and availability can change. Always confirm current information with Crumbl or your selected store before ordering, especially if you have a food allergy.

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