If you love rocky road, these fudgy Rocky Road Cookies will hit the spot. A tender, deeply chocolate cookie is crowned with gooey marshmallows and finished with a chocolate-almond frosting for a true rocky road experience in cookie form.
Table of Contents
- What goes into this Recipe
- Add-Ins
- How to make Rocky Road Sheet Cake Cookies with a Cake Mix
- Expert Tips
- Storage and Freezing
- Recipe FAQs
- Do you love Chocolate cookies? Try these recipes…
- Easy Fudgy Rocky Road Cookies Recipe
We are serious rocky road fans — the mix of chocolate, marshmallow, and toasted nuts is irresistible. Turning those flavors into a cookie meant preserving the fudgy chocolate base, the gooey marshmallows on top, and the crunchy nutty finish.
This recipe uses a chocolate fudge cake mix for the cookie base. It delivers rich chocolate flavor, a moist, slightly fudgy interior, and just enough crisp around the edges without having to measure out dry ingredients from scratch. Mini marshmallows pressed into the tops create that classic rocky road texture and a delightful melted chew.
The homemade chocolate-almond frosting is simple to make and adds a glossy finish plus a satisfying crunch from chopped roasted almonds. The result is a chewy, fudgy cookie with the layered flavors and textures you expect from rocky road — chocolate, marshmallow, and nut all in one bite.
What goes into this Recipe
- Chocolate Fudge Cake Mix: A boxed chocolate fudge cake mix forms the easy, flavorful cookie base and keeps the texture fudgy and moist.
- Mini Marshmallows: Pressed into the tops while baking, mini marshmallows melt and become delightfully gooey.
- Butter: Unsalted butter is used in the frosting for a rich, smooth base.
- Cocoa Powder: Adds extra chocolate intensity to the frosting.
- Milk: A small amount thins the frosting to the right consistency. Any milk will work.
- Almonds: Chopped roasted and salted almonds give crunch and a salty contrast to the sweet chocolate.
See the recipe card below for exact quantities and full ingredient details.
Add-Ins
For an even more indulgent cookie, fold semi-sweet chocolate chips or good-quality chocolate chunks into the batter. If you prefer a different marshmallow texture, mallow bits can be used in place of mini marshmallows for a slightly different melt.
How to make Rocky Road Sheet Cake Cookies with a Cake Mix
- Preheat the oven to 350°F (175°C).
- In a large bowl combine the chocolate fudge cake mix, eggs, and oil. Mix with a hand mixer or by hand until the batter is fully combined.
- Using a medium cookie scoop (about 2 tablespoons), portion mounds of dough onto a silicone mat or parchment-lined baking sheet, spacing them a couple of inches apart.
- Bake the cookies for 8 minutes. Remove the tray from the oven and press four mini marshmallows into the top of each cookie. Return to the oven for 2 more minutes — the marshmallows will puff as the cookies finish baking.
- Remove the cookies and let them cool on the baking sheet while you make the frosting.
- For the frosting, finely chop the roasted and salted almonds so they distribute evenly.
- In a small saucepan over medium heat, combine the butter, cocoa powder, and milk. Whisk until the butter melts and the mixture is smooth. Remove from heat, whisk in powdered sugar until smooth, then stir in the chopped almonds.
- Use a heaping teaspoon or tablespoon to spoon frosting onto each cookie, spreading slightly if needed. Let the frosting set before serving or stacking.
Expert Tips
- Press marshmallows into the warm cookies and return them to the oven: Doing this ensures the marshmallows bake into the surface and become chewy rather than simply sitting on top.
- Don’t overbake: Cake-mix cookies can dry out quickly. Remove them when the edges are set and finish setting as they cool on the sheet for a soft center.
- Prep frosting ingredients first: The frosting comes together fast, so have the powdered sugar and almonds measured before heating.
- Adjust frosting consistency: Add a little extra milk if the frosting is too thick, or more powdered sugar if it’s too thin. You want it thin enough to pour but firm enough to set.
- Allow frosting to set before stacking: Stacking too soon will cause the frosting to stick and transfer between cookies.
Storage and Freezing
Store: Keep cookies in an airtight container at room temperature for up to 3 days. If you prefer a firmer frosting, refrigerate them and bring to room temperature before serving for the best texture.
Freeze: Freeze unfrosted cookies for up to 3 months. Layer them with parchment or wax paper in a freezer-safe container. Thaw at room temperature and then prepare the frosting to top the thawed cookies.
Recipe FAQs
You can try other chocolate mixes like devil’s food or dark chocolate, but a chocolate fudge mix typically gives the richest rocky road flavor.
Yes — cut regular marshmallows into smaller pieces so they fit on the cookies. Mini marshmallows are easiest for even distribution.
Absolutely. Chopped peanuts, pecans, or walnuts work well — roasted and salted nuts give the best flavor contrast to the sweet chocolate.
Do you love Chocolate cookies? Try these recipes…
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Mexican Hot Chocolate Cookies
Desserts
Cream Cheese Chocolate Cookies with Cake Mix
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Easy Double Chocolate Crinkle Cookies
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Easy German Chocolate Cake Mix Cookies
Did you try this recipe? Leave a review and tell us how it turned out — we love hearing how your rocky road cookies turned out!
Easy Fudgy Rocky Road Cookies Recipe
Ingredients
Cookie
- 1 box chocolate fudge cake mix (13.25 ounces)
- ⅓ cup vegetable oil
- 2 large eggs
- 2 cups mini marshmallows
Chocolate Almond Frosting
- ½ cup butter
- 2 Tablespoons cocoa powder
- 3 Tablespoons milk (I used 1%)
- 2–2½ cups powdered sugar
- ⅓ cup roasted and salted almonds, chopped
Instructions
Cookies
- Preheat the oven to 350°F (175°C).
- Combine the cake mix, eggs, and oil in a large bowl and mix until fully incorporated.
- Scoop cookie dough using a medium cookie scoop or about 2 tablespoons onto a silicone mat or parchment-lined baking sheet.
- Bake for 8 minutes. Remove from oven, press four mini marshmallows into the top of each cookie, and return to the oven for 2 minutes or until marshmallows puff.
- Remove from oven and let cool on the baking sheet.
Chocolate Almond Frosting
- Combine butter, cocoa powder, and milk in a small saucepan over medium heat and whisk until melted and smooth. Remove from heat.
- Whisk in powdered sugar until smooth, then stir in chopped roasted and salted almonds.
- Spoon a heaping teaspoon or tablespoon of frosting over each cookie, allowing it to spread over the marshmallows. Let the frosting set before serving.
Notes
Press marshmallows into the partially baked cookies and return them to the oven so the marshmallows bake into the surface.
Adjust frosting consistency with more milk to thin or more powdered sugar to thicken. Frosting should pour but set.
Allow cookies to set completely before stacking to prevent frosting from sticking.
Nutrition
Serving: 1 cookie — Calories: 239 kcal; Carbohydrates: 33 g; Protein: 2 g; Fat: 12 g; Sugar: 24 g. Nutrition is an approximation.