Double chocolate birthday cookies

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Oh, friends, do I have a treat for you today! There’s just something so magical about a birthday, isn’t there? And what’s a birthday without cake? But sometimes, you want all that festive joy and deliciousness in a handheld, shareable form. That’s where these Double chocolate birthday cookies come in. I started making these a few years ago for my nephew’s birthday when he requested “chocolate, but make it fun,” and they’ve been a hit ever since. They bring so much cheer to any celebration!

Double chocolate birthday cookies - finished dish

Why You’ll Love This Double chocolate birthday cookies

  • These cookies are incredibly rich and chocolatey, perfect for any chocolate lover.
  • The texture is wonderfully soft and chewy, with a tender crumb.
  • They’re surprisingly easy to make, even for beginner bakers.
  • They’re super festive with all those sprinkles, making them ideal for celebrations!

Ingredients You’ll Need

  • Unsalted Butter: Using unsalted butter gives you control over the salt content. Make sure it’s at room temperature for easy creaming!
  • Dutch Process Cocoa Powder: This is key for that deep, rich chocolate flavor and dark color. Don’t swap it for natural cocoa if you can help it.
  • Light Brown Sugar: Adds moisture and a lovely caramel note to the cookies.
  • Heavy Cream: Essential for a smooth, fluffy frosting. You might need a little more or less depending on your desired consistency.
  • Rainbow Sprinkles: The fun part! Use good quality sprinkles that won’t bleed too much color.

How to Make Double chocolate birthday cookies Step by Step

First things first, let’s get that cookie dough started! In your stand mixer (or a large bowl with a hand mixer), you’ll add your room temperature butter and both sugars. Beat them together for about a minute until they’re nicely combined and creamy. Don’t forget to scrape down the sides of your bowl – this makes sure everything gets mixed evenly!

Next, you’ll add your egg and that lovely vanilla extract. Beat this mixture for about two minutes, and you’ll see it lighten up and get fluffy. This is where the magic happens for a tender cookie! Scrape down the bowl and the beater again, then mix for another minute. Now, stir in your cocoa powder until it’s completely blended, then add the rest of your dry ingredients: flour, baking soda, baking powder, and salt. Mix on low speed until the dough just comes together. Finish mixing by hand with a spatula to ensure no dry spots are left at the bottom – trust me on this one!

Now for the fun part – sprinkles! Measure out your sprinkles into a medium bowl. Scoop your dough onto a parchment-lined baking sheet using a large cookie scoop. Each scoop should be about 2.5 to 3 tablespoons, or roughly 50g. Roll each scoop in your palms to smooth out the edges, then roll them in the sprinkles to coat them completely. Cover your baking sheet with plastic wrap and pop it into the fridge. Chilling is super important here, so give it at least 3 hours, or up to 12. While your dough is chilling, you can get a head start on your frosting – I find it develops a deeper chocolate flavor when made ahead and chilled!

Double chocolate birthday cookies - step by step

My Top Tips for Success

  • I always make sure my butter is truly at room temperature for both the cookies and the frosting. It makes such a difference in texture!
  • Don’t skip the chilling time for the cookie dough; it helps prevent spreading and deepens the flavor.
  • In my experience, using a kitchen scale for flour and sugar is a game-changer for consistent results.
  • Trust me on this one: scrape down your mixing bowl frequently. It ensures everything is perfectly incorporated.
  • For the best frosting consistency, let it come back to room temperature before you try to spread it.

Common Mistakes to Avoid

  • Overmixing the dough: This can lead to tough cookies. Mix only until the ingredients are just combined.
  • Not chilling the dough long enough: This will result in flat, spread-out cookies. Always chill for at least 3 hours.
  • Baking cookies on a warm baking sheet: Always use a cool baking sheet, or your cookies will start to spread immediately.
  • Overbaking the cookies: Cookies will continue to cook slightly as they cool. Take them out when the edges are set but the centers still look a little soft.
  • Trying to frost warm cookies: The frosting will melt right off! Make sure your cookies are completely cool.

How to Store Double chocolate birthday cookies

  • Room Temperature (unfrosted): Store in an airtight container for up to 3-4 days.
  • Refrigerator (frosted): Store in an airtight container for up to 5 days. The frosting will harden, but they’re delicious straight from the fridge or at room temp.
  • Freezer (unfrosted dough): Scoop and roll dough balls, then freeze on a baking sheet until solid. Transfer to a freezer-safe bag for up to 3 months. Bake from frozen, adding a minute or two to bake time.

Frequently Asked Questions

What type of cocoa powder should I use?

I highly recommend using Dutch process cocoa powder for these cookies. It gives them a much deeper, richer chocolate flavor and a beautiful dark color that natural cocoa won’t achieve.

Can I make the cookie dough ahead of time?

Absolutely! The cookie dough can be made up to 12 hours in advance and stored in the refrigerator. This is great for party prep!

Why do my cookies spread too much?

The most common reasons are not chilling the dough long enough, using butter that’s too soft, or too much flour. Make sure your butter isn’t melted and chill that dough!

Can I freeze the baked cookies?

Yes, you can freeze the unfrosted baked cookies in an airtight container for up to 1 month. Thaw them at room temperature before frosting.

What if my frosting is too thick or too thin?

If your frosting is too thick, add a tiny bit more heavy cream, about a teaspoon at a time, until it reaches your desired consistency. If it’s too thin, you can add a tablespoon or two more of powdered sugar.

I hope these Double chocolate birthday cookies bring as much joy and deliciousness to your celebrations as they do to mine. They’re truly a special treat! If you make them, I’d love to hear how they turned out and who you shared them with!

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Double chocolate birthday cookies

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Rich, chewy chocolate cookies topped with a decadent chocolate frosting and festive sprinkles, perfect for any celebration.

  • Author: Hanna
  • Prep Time: 45
  • Cook Time: 13
  • Total Time: 300
  • Yield: 10 cookies
  • Category: Dessert
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian

Ingredients

Scale
  • 8 tablespoons (113g) unsalted butter, room temperature
  • 1/2 cup (96g) granulated sugar
  • 1/3 cup (64g) light brown sugar
  • 1 large egg
  • 1 teaspoon vanilla extract
  • 1/3 cup (35g) dutch process cocoa powder
  • 1 1/4 cup (150g) all purpose flour
  • 1/2 teaspoon baking soda
  • 1/4 teaspoon baking powder
  • 1/4 teaspoon salt
  • 1/2 cup rainbow sprinkles
  • 6 tablespoons (85g) unsalted butter, room temperature
  • 1/2 teaspoon vanilla extract
  • 1 1/2 cup (180g) powdered sugar
  • 1/3 cup (35g) dutch process cocoa powder
  • Pinch salt
  • 2-3 tablespoons heavy cream

Instructions

  1. Place 8 tablespoons (113g) room temperature unsalted butter and both sugars into a stand mixer bowl or large bowl.
  2. Combine at medium speed for about 1 minute until creamy.
  3. Scrape down the sides of the bowl with a spatula.
  4. Add the egg and 1 teaspoon vanilla extract to the mixture.
  5. Continue to mix for about 2 minutes until the mixture lightens in color and volume.
  6. Scrape down the bowl and mixer attachment again.
  7. Mix for another 1 minute.
  8. Add 1/3 cup (35g) dutch process cocoa powder and mix for 1 minute until fully incorporated.
  9. Scrape down the sides of the bowl and mixer attachment.
  10. Add 1 1/4 cup (150g) all purpose flour, 1/2 teaspoon baking soda, 1/4 teaspoon baking powder, and 1/4 teaspoon salt to the bowl.
  11. Mix at a low speed until the dough just forms.
  12. Pause the mixer and finish mixing the dough by hand with a spatula, making sure to scrape the bottom of the bowl.
  13. Measure 1/2 cup rainbow sprinkles into a medium bowl and set aside.
  14. Line a cookie sheet with parchment paper.
  15. Scoop cookie dough onto the prepared cookie sheet using a large cookie scoop (about 2.5 – 3 tablespoons, or 50g per scoop).
  16. Roll each scooped dough ball in your palms to smooth out the edges.
  17. Roll each dough ball into the sprinkles to coat completely.
  18. Cover the cookie sheet tightly with plastic wrap.
  19. Place the cookie sheet in the fridge to chill for a minimum of 3 hours, or up to 12 hours.
  20. Prepare the frosting: In a bowl, combine 6 tablespoons (85g) room temperature unsalted butter, 1/2 teaspoon vanilla extract, 1 1/2 cup (180g) powdered sugar, 1/3 cup (35g) dutch process cocoa powder, and a pinch of salt.
  21. Use a spatula to mix the frosting ingredients until completely smooth. (It will appear crumbly at first, but keep mixing until it dampens).
  22. Add 1 tablespoon of heavy cream and mix until combined.
  23. Switch to a hand mixer or stand mixer and mix for 1-2 minutes at medium to high speed until the frosting increases in volume and lightens in color.
  24. Add another tablespoon of heavy cream and continue to mix for another 2 minutes.
  25. If the frosting is too thick, add a third tablespoon of heavy cream and mix one final time.
  26. Cover the frosting by pressing plastic wrap directly onto its surface or placing it in an airtight container.
  27. Refrigerate the frosting while the cookie dough chills.
  28. When ready to bake, remove the chilled frosting from the fridge to allow it to come to room temperature.
  29. Preheat your oven to 350°F (175°C).
  30. Remove the chilled cookie dough from the fridge.
  31. Bake the cookies for 11-13 minutes.
  32. Allow the baked cookies to cool completely on the baking sheet, about 1 hour.
  33. Once the frosting has reached room temperature, use a spatula to mix it again to ensure it's smooth and softened.
  34. Spoon about 1 1/2 tablespoons of frosting onto each completely cooled cookie.
  35. Spread the frosting as desired and enjoy!

Notes

Ensure butter is at room temperature for both cookies and frosting for best texture.
Don’t skip the dough chilling; it prevents spreading and enhances flavor.
Use a kitchen scale for precise ingredient measurements, especially for flour.
Scrape down your mixing bowl frequently to ensure even incorporation of ingredients.

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I’m Anni Seyler baker, relentless recipe tester, professional butter enthusiast, and the person behind The Flaky Truth. I’m 32, a mom of two, and I spend most of my week with flour somewhere it shouldn’t be (usually my hair).

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