Easy Rainbow Cake Mix Cookies That Are Perfect for Parties and Sweet Celebrations

Name: Easy Rainbow Cake Mix Cookies That Are Perfect for Parties and Sweet Celebrations
Prep time: 5 min
Cook time: 12 min
Total time: 45 min
Yield: 24 servings
Cuisine: American
Ingredients: 3 cups vegetable oil; 1 teaspoon vanilla extract; 2 cups rainbow sprinkles; 1 box (15.25 oz) cake mix (any flavor); 2 large eggs

March 26, 2025

Recipes

Sometimes, I just want to bake something bright, cheerful, and super easy — and these rainbow cake mix cookies are exactly that. They’re soft, chewy, and packed with colorful sprinkles that make them feel like a little party in every bite. Best of all, they come together in under 20 minutes with just a handful of ingredients.

The first time I made these cookies was for my kids’ school party, and they were a total hit. They’re perfect for birthday parties, bake sales, or even just a fun rainy-day baking project. The cake mix makes the process foolproof, and the end result tastes like a cross between a soft sugar cookie and a classic birthday cake.

Why I Love These Rainbow Cake Mix Cookies

Super quick and easy to make with minimal ingredients.
Soft, chewy, and bursting with sweet vanilla flavor.
Loaded with colorful rainbow sprinkles that make them fun and festive.
Perfect for parties, holidays, and bake sales.
Kid-friendly, both to make and to eat!

Ingredients You’ll Need
(Makes about 24 cookies | Prep Time: 5 minutes | Bake Time: 10 minutes)

1 box white cake mix
1/3 cup vegetable oil
2 large eggs
1 teaspoon vanilla extract
1/2 cup rainbow sprinkles

Optional add-ins: white chocolate chips, mini M&M’s, or a drizzle of frosting on top for extra sweetness.

How I Make Rainbow Cake Mix Cookies (Step-by-Step)

Preheat the Oven
I preheat the oven to 350°F and line two baking sheets with parchment paper.
Make the Dough
In a large bowl, I combine the cake mix, vegetable oil, eggs, and vanilla extract. I mix everything together until a soft, sticky dough forms.
Add Sprinkles
I gently fold in the rainbow sprinkles, being careful not to over-mix so the colors don’t bleed too much into the dough.
Scoop and Shape
I scoop tablespoon-sized balls of dough onto the prepared baking sheets, spacing them about two inches apart.
Bake
I bake the cookies for 9–11 minutes, just until the edges are set and the centers are still slightly soft.
Cool and Enjoy
I let the cookies cool on the baking sheet for a couple of minutes before transferring them to a wire rack. Then I pour myself a cup of coffee and enjoy one (or two)!

My Tips for the Best Cake Mix Cookies

Don’t overbake — they should be soft in the center and will continue to set as they cool.
Use parchment paper to prevent sticking and make cleanup a breeze.
For even prettier cookies, press a few extra sprinkles on top of each cookie dough ball before baking.
Store in an airtight container to keep them soft and fresh for days.

Fun Variations I’ve Tried

Using funfetti or confetti cake mix for even more sprinkles.
Adding white chocolate chips or candy pieces for extra texture and flavor.
Making them holiday-themed by swapping in seasonal sprinkles.
Drizzling melted white or dark chocolate over the top for a little extra flair.

What I Serve with Rainbow Cake Mix Cookies

A cold glass of milk — the perfect cookie companion.
Hot coffee or tea for an afternoon treat.
Alongside ice cream sundaes at a dessert bar.
A platter of assorted cookies for parties or gatherings.

Frequently Asked Questions

Q: Can I use different cake mix flavors?
A: Absolutely! Yellow, strawberry, or even lemon cake mix works great with sprinkles.

Q: Can I freeze these cookies?
A: Yes! Freeze baked cookies in an airtight container for up to 2 months.

Q: Can I make the dough ahead of time?
A: You can refrigerate the dough for up to 24 hours before baking. Just let it sit at room temperature for a few minutes if it gets too firm.

Q: How do I keep the cookies soft?
A: Store them in an airtight container with a slice of bread — the bread will help maintain moisture.

Why These Rainbow Cake Mix Cookies Deserve a Spot in Your Recipe Box

These cookies are bright, happy, and unbelievably easy to make. Whether you’re baking for a party, sharing with friends, or just want a quick treat, this recipe never fails. They’re soft, sweet, and full of fun color — everything a good cookie should be.

I hope you give these cookies a try and share them with people you love. And if you get creative with mix-ins or make them themed for a special occasion, let me know — I’d love to hear how you make these fun cookies your own!