Rocky Road Cake Mix Bar Cookies

Cake mix bar cookies are fast and easy to put together, a nice alternative to cake. The rocky road bar comes out soft and chewy and holds together well for potlucks, school, or work lunches. Rich, creamy, and chocolaty cake mix bar cookies are an indulgent treat.

Prep Time:
15 mins
Cook Time:
25 mins
Total Time:
40 mins
18 bar cookies


  • 1 (18.5 ounce) package chocolate cake mix

  • ½ cup vegetable oil

  • 1 egg

  • 1 (12 ounce) container prepared chocolate frosting

  • 2 cups milk chocolate chips

  • 2 cups miniature marshmallows

  • ½ cup chopped almonds, lightly toasted, or more to taste


  1. Preheat the oven to 350 degrees F (175 degrees C). Grease a 9x13-inch baking pan.

  2. Mix cake mix, oil, and egg together in a bowl. Spread batter into the prepared pan.

  3. Bake in the preheated oven until a toothpick inserted into the center comes out clean, about 15 minutes. Remove pan and leave oven on.

  4. Pour frosting into a microwave-safe bowl. Cook in the microwave until warmed through, about 30 seconds. Pour frosting over the baked cake mix crust. Top with 1/2 the chocolate chips and 1/2 the almonds. Add marshmallows to cover. Top with remaining chocolate chips and almonds.

  5. Bake in the hot oven until top is a nice golden brown, about 10 minutes. Let cool before cutting.

Cook's Notes:

These can be made with vanilla cake mix and vanilla icing, plus walnuts and dark chocolate chips; use whatever you have.

I put my bars in the freezer for a few hours to make cutting so much easier.

Nutrition Facts (per serving)

444 Calories
24g Fat
55g Carbs
5g Protein
Nutrition Facts
Servings Per Recipe 18
Calories 444
% Daily Value *
Total Fat 24g 31%
Saturated Fat 8g 40%
Cholesterol 20mg 7%
Sodium 305mg 13%
Total Carbohydrate 55g 20%
Dietary Fiber 1g 4%
Total Sugars 41g
Protein 5g
Calcium 53mg 4%
Iron 2mg 9%
Potassium 156mg 3%

* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

** Nutrient information is not available for all ingredients. Amount is based on available nutrient data.

(-) Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.