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Stardust Brownie Cookies

Stardust Brownie Cookies taste heavenly but are down to earth with a moist melt-in-your-mouth soft brownie cookie base.  They are topped with a heavenly chocolate ganache, starry night sprinkles, and glitter.   If you are a brownie lover, you might like my Red Velvet Cream Cheese Brownies or my Berries and Cream Brownie Cups. 


SIS Tip – Simple is Smart  Melt chocolate chips or chocolate chunks for a chocolate glaze, frosting, or ganache in the microwave.  Microwave for 30 seconds, stir and repeat until the chocolate is smooth and melted. 


Ingredients for Stardust Brownie Cookies

Brownie Cookie Dough

Butter – use either salted or unsalted but take the butter out and let it warm up before using. 

Brown and granulated Sugar – keep the brownie cookie soft and sweet.

Egg – Holds the cookies together and gives them a little lift.  Let the egg warm up to room temperature. 

Corn Syrup – The corn syrup keeps the cookies from getting grainy by inhibiting the formation of large sugar crystals. 

Vanilla – use pure vanilla extract

Flour – all-purpose flour 

Espresso Powder a little espresso powder enhances and intensifies the chocolate flavor of the cookie. 

Corn Starch- Helps keep the cookies plump, soft, and tender. 

Baking Soda – give the cookies some lift. 

Dutch Process Cocoa Powder –  this cocoa powder has been treated to make it less bitter than natural cocoa powder. 

Chocolate Chips – extra chocolate flavor and the richness of cocoa butter

Chocolate Ganache

Chocolate Chips – rich, smooth chocolate topping

Heavy Cream – forms a silky smooth chocolaty mixture when heated with the chocolate.

Stardust Brownie Cookies

Step by Step – How to make Stardust Brownie Cookies:

Make the Brownie Cookie Dough:

  • Cream together the vanilla, eggs, and corn syrup with a stand or hand mixer.
  • Add the espresso powder, corn starch, salt, and baking soda to the flour and mix.
  • Add the flour mixture to the dough and mix on medium-low. 
  • Add the cocoa powder and mix.
  • Stir in the chocolate chips and refrigerate the dough for 1-2 hours. 
stardust brownie cookies
  • Preheat the oven to 350 degrees 
  • Use a 2 tbsp—cookie scoop to form 18 cookies. Place the cookies on a parchment-lined cookie sheet about two inches apart. 
  • Slightly flatten with your fingers.
  • Freeze the pan of cookies for 10 minutes and bake for 7-8 minutes.
  • Let the cookies cool completely before adding the chocolate ganache. 
Stardust Brownie Cookies

Make the ganache and add the stardust.

Heat the chocolate chips with the heavy cream in the microwave for 30 seconds.  Stir until the chocolate melts into a smooth and silky chocolate ganache.  

Add a teaspoon of ganache to each cookie.  Spread the ganache in a circle on top of the cookie.   Sprinkle with stardust and let the cookies sit undisturbed until the chocolate is firm and hard.  I purchase the galaxy sprinkles and don’t use the large or small balls as they are too crunchy for the soft cookies.

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Stardust Brownie Cookies

Stardust Brownie Cookie

Stardust Brownie Cookie is a moist melt-in-your-mouth fudgy cookie topped with chocolate ganache and dusted with cosmic stardust for an out-of-this-world cookie.
Prep Time: 15 minutes
Cook Time: 7 minutes
refrigerate the dough 1 hour, decorate the cookies 15 minutes: 1 hour 15 minutes
Total Time: 1 hour 37 minutes
Course: cookie, Dessert
Cuisine: American
Keyword: beautiful cookies, brownie cookie, chocolate cookie
Servings: 18 cookies
Calories: 178kcal


  • To see the ingredient amounts in metric units, click the blue "METRIC:" button between the ingredients and the instructions for this recipe.
  • This page contains Amazon affiliate links. If you click a link, I may earn a small commission from qualifying purchases at no extra cost to you


  • To see the ingredient amounts in metric units, click the blue "METRIC:" button between the ingredients and the instructions for this recipe.

Cookie Dough

  • ½ cup butter softened
  • ½ cup brown sugar
  • 3 tbsp granulated sugar
  • 1 large egg
  • 2 tsp corn syrup
  • 1 tsp vanilla extract
  • cups flour
  • ½ tsp espresso powder
  • 1 tsp corn starch
  • 1 tsp baking soda
  • ¼ tsp salt
  • cup dutch process cocoa powder
  • cup mini semi-sweet chocolate chips
  • glitter sprinkles with stars.

Ganache Topping

  • ½ cup dark chocolate chips
  • 2 Tbsp heavy cream


Make the Cookie Dough

  • Cream together with a hand mixer or stand mixer, butter, brown sugar, and white sugar.
  • Add the vanilla, egg, and corn syrup. Mix in.
  • Add the espresso powder, corn starch, salt, and baking soda to the flour and mix to combine.
  • Add the flour mixture to the dough and mix on med-low until incorporated.
  • Add the cocoa powder and mix in.
  • Stir in the mini chocolate chips. Refrigerate the dough for 1 hour.
  • Preheat the oven to 350°F 170°C
  • Line a baking sheet with parchment paper. Use a 2 Tbsp. cookie scoop to form the cookies into balls.
  • Flatten the cookies slightly with your fingers and put the pan in the freezer for 5 minutes.
  • Bake the cookies for 7 - 8 minutes. Rotate the front to back halfway through baking.
  • Let the cookies cool on the baking sheet for 20 minutes before moving to a cooling rack.

Make the Ganache

  • Add the dark chocolate chips to the heavy cream.
  • Microwave for 30 seconds and stir to combine. If the chips aren't fully melted, microwave another 20 seconds.
  • Spread a small spoonful of ganache on top of each cookie and decorate with Galaxy Sprinkles and Blue Diamond Dust.
  • To see the ingredient amounts in metric units, click the blue "METRIC:" button between the ingredients and the instructions for this recipe.
  • See notes for storing.



Cookies will keep for six days in an airtight container in the refrigerator. 
Frozen cookies will keep for a month in an airtight container. 


Serving: 1cookie | Calories: 178kcal | Carbohydrates: 22g | Protein: 2g | Fat: 10g | Saturated Fat: 6g | Polyunsaturated Fat: 0.4g | Monounsaturated Fat: 2g | Trans Fat: 0.2g | Cholesterol: 26mg | Sodium: 86mg | Potassium: 106mg | Fiber: 1g | Sugar: 12g | Vitamin A: 200IU | Vitamin C: 0.04mg | Calcium: 31mg | Iron: 1mg
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