Rich chocolate cookies made with cocoa mix and dried marshmallow bits ready in 25 minutes.
Here in Austin, "winter" weather can swing wildly from sunny afternoons to chilly evenings in the span of a few hours. Regardless of what the thermometer says outside, I am always ready to embrace the comfort of the season in the kitchen. There is something undeniably nostalgic about the scent of powdered cocoa mix and those tiny, crunchy dehydrated marshmallows. This recipe captures that exact flavor profile but transforms it into a chewy, buttery cookie. It has become a staple in my holiday baking rotation because it successfully bridges the gap between a standard chocolate chip cookie and a fudgy brownie, bringing a bit of childhood magic to the dessert table.
Crucially, you must use dehydrated vanilla marshmallow bits-often found in canisters near the hot cocoa or in the baking aisle-rather than standard soft miniature marshmallows. Fresh marshmallows contain too much moisture and will dissolve into sticky, caramelized puddles on your baking sheet, whereas the dehydrated bits hold their shape during baking and provide that signature textural crunch.
The Ultimate Edible Mug of Cocoa

Why You'll Love This Recipe
- Double Chocolate Impact: By using both instant cocoa mix and baking cocoa, you get a depth of flavor that is sweet yet robust.
- Nostalgic Texture: The inclusion of dried marshmallow bits mimics the experience of drinking hot cocoa, offering a delightful crunch against the soft cookie crumb.
- Pantry Friendly: Aside from the specific marshmallow bits, this recipe relies on standard staples you likely already have in your cupboard.
- Crowd Pleaser: These are sturdy enough for holiday cookie exchanges but soft enough to feel decadent.
Ingredients
To get the texture right, precise ingredients matter. Here is what you need:
- Unsalted Butter: You need ¾ cup, softened to room temperature so it creams properly with the sugars.
- Sugars: A blend of ¾ cup granulated sugar and ¾ cup packed light brown sugar provides moisture and chewiness.
- Eggs: Two large eggs at room temperature help emulsify the batter.
- Vanilla Extract: One teaspoon helps round out the chocolate flavor.
- All-Purpose Flour: 2-¼ cups provides the structure.
- Instant Hot Cocoa Mix: You will need ½ cup of the powder (roughly 3 standard packets). Do not use sugar-free varieties as they alter the spread.
- Baking Cocoa: 3 tablespoons of unsweetened cocoa powder intensifies the chocolate color and taste.
- Leavening: 1 teaspoon baking soda and ½ teaspoon baking powder ensure the cookies rise and spread correctly.
- Salt: 1 teaspoon to balance the sweetness.
- Add-Ins: 1 cup vanilla marshmallow bits (dehydrated) and 1 cup semisweet chocolate chips.
How to Make Hot Chocolate Cookies

Cream the Butter and Sugars
Preheat your oven to 375°F. In the bowl of a stand mixer fitted with the paddle attachment, or using a large bowl and hand mixer, cream the softened butter, granulated sugar, and brown sugar. Do not rush this step; beat for a full 5 to 7 minutes until the mixture is very pale in color and fluffy in texture. This aeration is the secret to a cookie that isn't heavy or dense.
Add Wet Ingredients
Scrape down the sides of the bowl. Add the eggs one at a time, beating well after each addition. Mix in the vanilla extract. The mixture should look smooth and creamy.
Combine Dry Ingredients
In a separate medium bowl, whisk together the all-purpose flour, instant hot cocoa mix, baking cocoa, salt, baking soda, and baking powder. Ensure there are no large lumps of cocoa powder.
Mix the Dough
Gradually add the dry ingredients to the wet creamed mixture with the mixer on low speed. Mix just until streaks of flour disappear. Overmixing at this stage can develop gluten and make the cookies tough. Gently fold in the marshmallow bits and semisweet chocolate chips by hand using a spatula to ensure they are evenly distributed without crushing the bits.
Bake
Drop the dough by rounded tablespoonfuls onto greased or parchment-lined baking sheets, spacing them about 2 inches apart to allow for spreading. Bake for 10 to 12 minutes. You are looking for the edges to be set and the tops to look dry, even if the centers seem slightly soft. They will firm up as they cool.
Cool
Let the cookies rest on the baking sheet for 2 to 3 minutes before transferring them to wire racks to cool completely. This resting period prevents them from falling apart when you move them.
Common Mistakes to Avoid
- Using Soft Marshmallows: As mentioned, using regular soft marshmallows will result in a sticky mess that melts onto the pan rather than staying inside the cookie. Stick to the dehydrated bits.
- Overbaking: It is easy to overbake chocolate cookies because you cannot see them golden brown. If you bake them until they feel hard in the center, they will be dry once cooled. Pull them out when they still look slightly underdone in the middle.
- Cold Ingredients: If your butter is too cold, it won't aerate properly with the sugar, leading to a dense cookie. If your eggs are cold, they can curdle the butter batter. Ensure everything is at room temperature before starting.
Tips and Tricks for Success
- Measure Flour Correctly: Use the spoon-and-level method or a kitchen scale. Scooping flour directly with the measuring cup packs it down, leading to dry, crumbly cookies.
- Check Your Cocoa Mix: Use a standard milk chocolate hot cocoa mix. Avoid mixes with dried milk powder listed as the very first ingredient if possible, though most standard grocery store brands work perfectly fine.
- Pan Prep: I prefer using parchment paper over greasing the pan. It ensures an even bake and makes cleanup significantly easier, especially if a marshmallow bit melts on the edge.
- Chill if Needed: If your kitchen is particularly warm (a common issue for me here in Texas), pop the dough in the fridge for 15 minutes before scooping to control the spread.
Variations
- Mexican Hot Chocolate: Add ½ teaspoon of ground cinnamon and a pinch of cayenne pepper to the dry ingredients for a warming kick.
- Peppermint Cocoa: Swap the vanilla extract for peppermint extract, or add crushed candy canes on top of the cookies right after they come out of the oven.
- Mocha Twist: Add 1 teaspoon of instant espresso powder to the dry ingredients to deepen the chocolate flavor.
How to Serve
These cookies are best served slightly warm. For the ultimate experience, serve them alongside a steaming mug of hot chocolate or a cold glass of milk. They also make fantastic foundations for ice cream sandwiches-try sandwiching a scoop of peppermint or coffee ice cream between two cooled cookies.

Make Ahead and Storage
- Room Temperature: Store baked cookies in an airtight container at room temperature for up to 5 days. To keep them soft, you can place a slice of white bread in the container with them.
- Freezing Dough: You can scoop the dough into balls and freeze them on a baking sheet, then transfer to a zip-top bag. Bake from frozen, adding 1 to 2 extra minutes to the baking time.
- Freezing Baked Cookies: Baked cookies can be frozen for up to 3 months in an airtight container. Thaw on the counter for an hour before serving.
Recipe Notes / What I Learned
During testing, I found that the sugar content in the instant cocoa mix contributes to the spread of the cookie. If you prefer a thicker, puffier cookie, you can increase the flour by an extra 2 tablespoons, but the current ratio yields that perfect chewy-crisp balance.
Nutrition Snapshot
One cookie contains approximately 190 calories, 9g fat, and 26g carbohydrates.

Hot Chocolate Cookies
Equipment
- Large bowl
- Electric mixer
- Whisk
- Baking sheets greased
- Wire racks
Ingredients
Group: Cookies
- ¾ cup butter, softened
- ¾ cup sugar
- ¾ cup packed brown sugar
- 2 large eggs, room temperature
- 1 teaspoon vanilla extract
- 2 ¼ cups all-purpose flour
- ½ cup instant hot cocoa mix (about 3 packets)
- 3 tablespoons baking cocoa
- 1 teaspoon salt
- 1 teaspoon baking soda
- ½ teaspoon baking powder
- 1 cup vanilla marshmallow bits (not miniature marshmallows)
- 1 cup semisweet chocolate chips
Instructions
- Preheat oven to 375°. In a large bowl, cream butter and sugars until light and fluffy, 5-7 minutes. Beat in eggs and vanilla.
- In another bowl, whisk flour, cocoa mix, baking cocoa, salt, baking soda and baking powder; gradually beat into creamed mixture. Gently stir in marshmallow bits and chocolate chips.
- Drop dough by tablespoonfuls 2 in. apart onto greased baking sheets. Bake until set, 10-12 minutes.
- Remove to wire racks to cool completely.
Notes
Nutrition
FAQs
Can I use Dutch-process cocoa powder?
Yes, you can. Dutch-process cocoa will yield a darker, fudgier cookie with a more mellow flavor compared to natural cocoa powder, but both work well in this recipe.
Where can I find marshmallow bits?
They are usually located in the baking aisle near the chocolate chips or in the beverage aisle near the hot cocoa mix. Brands like Jet-Puffed or generic store brands often carry "Mallow Bits."
Why did my cookies spread too much?
This usually happens if the butter was melted rather than softened, or if the baking sheet was hot when you placed the dough on it. Always let baking sheets cool completely between batches.




