Funfetti Mug Cake

Funfetti Mug Cake is a light, fluffy, vanilla mug cake that's bursting with colorful sprinkles and comes together in just a few minutes in the microwave. It's the perfect way to celebrate a birthday, anniversary, or any special occasion!

Funfetti Mug Cake with text overlay

Guess what today is??? Five Heart Home's 3rd blogiversary! That's right, friends...three years ago today, I gritted my teeth, squeezed my eyes shut, and hit publish on my very first blog post. And I never could have imagined the journey since then...that with lots of hard work, this blog would evolve into my full-time job and, in the past year, even lead to me writing a cookbook. What?! Crazy. So what say we celebrate with sprinkles and cake!

Spoonful of Funfetti Mug Cake with sprinkles

Funfetti Mug Cake is my latest microwave mug cake incarnation, and this one is super festive and yummy. Despite the fact that I generally avoid feeding my family food coloring, my kids do adore sprinkles. So we occasionally indulge on special occasions, and today seems as fitting a reason as any! This mug cake batter takes only a couple of minutes to stir together, and then the cake bakes up in the microwave in another minute or two. That means you're less than five minutes away from your own personal vanilla cake studded with happy, colorful sprinkles!

White dish full of colorful sprinkles, with candles and birthday napkins on the table

The base of this mug cake is my tried-and-true recipe. It yields light, fluffy cake, and the sprinkles add little bursts of sweetness and crunch. I added a tiny bit of almond extract in addition to the usual vanilla extract, which I think gives this Funfetti Mug Cake even more of a birthday cake vibe. And if you want to make several mug cakes at once, simply multiply the recipe accordingly, stir up the batter in one bowl, divide it evenly between the appropriate number of mugs, and microwave them one at a time. Looks like a party to me!

Aerial view of Funfetti Mug Cakes on napkins with sprinkles and candles scattered on table

So thank y'all for three fun-filled years of amazing support -- for visiting, for reading, for making my recipes, for leaving comments, for following Five Heart Home on social media, for sharing it with your friends and family.

Close-up of three lit birthday candles

Five Heart Home is my creative outlet and my dream job in one, and it wouldn't be possible without y'all...I truly can't thank you enough.

What say we toast three years of blogging with some Funfetti Mug Cake, shall we? 😉

More Mug Cakes

Funfetti Mug Cakes with sprinkles.

Funfetti Mug Cake

Funfetti Mug Cake is a light, fluffy, single-serving vanilla cake bursting with colorful sprinkles that comes together in just a few minutes -- the perfect way to celebrate a birthday, anniversary, or any special occasion!
Course: Dessert
Cuisine: American
Prep Time: 10 minutes
Cook Time: 2 minutes
Total Time: 12 minutes
Servings: 1 mug cake
Calories: 497kcal
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  • ¼ cup + 2 tablespoons all-purpose flour
  • 2 tablespoons sugar
  • ¼ teaspoon baking powder
  • ¼ cup milk, at room temperature
  • 2 tablespoons salted butter, melted and cooled
  • ½ teaspoon pure vanilla extract
  • ¼ teaspoon pure almond extract
  • 1 tablespoon + 1 teaspoon rainbow sprinkles


  • In a small bowl, whisk together flour, sugar, and baking powder until thoroughly, completely combined, with no streaks of any ingredients remaining. Blend in milk, butter, vanilla, and almond extract until batter is smooth. Quickly stir in 1 tablespoon of sprinkles. Pour batter into a 14-ounce (or larger) microwave-safe mug with straight sides. Top with remaining 1 teaspoon sprinkles.
  • Microwave on high for 1 ½ minutes (give or take 30 seconds depending on the strength of your microwave), or until cake is done to your liking. Allow to cool for a couple of minutes before serving.


  • A tall, cylindrical mug with straight (not angled) sides will ensure that the cake bakes evenly. I found a 14-ounce mug to be the perfect size to allow the cake to rise up while baking without overflowing. (I filled my mug to the top with water and then transferred the water to a measuring cup to determine its capacity.) If you use a smaller mug, you may want to bake the cake on top of a plate or paper towel to catch any possible overflow. (That being said, I slightly overfilled my mugs for these photos so that the mug cake would rise closer to the top, making it more visible for photography purposes.)
  • The strength of individual microwaves can vary. The first time you make this recipe, be prepared to experiment a bit to ensure the perfect length of baking time for your particular microwave. The nice thing about this cake is that even if it is undercooked, you don't have to worry about raw eggs!
  • Unsalted butter will work just fine in this recipe, but I find that using salted butter adds a tiny flavor boost. If you only have unsalted butter on hand, consider adding a tiny pinch of salt to the dry ingredients.
  • You may use regular sprinkles or natural vegetable-dyed sprinkles. You may use nonpareils or jimmies.


Calories: 497kcal | Carbohydrates: 61g | Protein: 5g | Fat: 26g | Saturated Fat: 16g | Cholesterol: 66mg | Sodium: 228mg | Potassium: 182mg | Fiber: 1g | Sugar: 37g | Vitamin A: 799IU | Calcium: 112mg | Iron: 1mg
Made this recipe? I'd love to see on IG!Mention @FiveHeartHome or tag #FiveHeartHome!


P.S. When my kids saw me whipping up Funfetti Mug Cakes for this post and inquired why, I explained that it was the 3-year anniversary of Five Heart Home. So those three little stinkers promptly disappeared...and then re-emerged a bit later with homemade congratulatory cards. Sweetest. Kids. Ever. Or maybe they were just buttering me up for some mug cake... 😉

Funfetti Mug Cake ~ this single-serving microwave mug cake recipe comes together in just a few minutes and yields light, fluffy, vanilla cake -- bursting with colorful sprinkles, and perfect for a birthday, anniversary, or any celebration! |

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  1. Happy Blog Anniversary! This mug cakes are so creative, fun and festive, perfect way to celebrate amazing 3 years. Cheers!

  2. Happy anniversary! Cute mug cake. I love funfetti. This is a great cozy make it in a hurry snack. What can be better than that? Yum!

  3. Congrats on 3 years and your new book friend. You've done amazing things in 3 years!

  4. A heartfelt congratulations to you! I adore your blog and have become such a better cook because of you! Thank you for all of your hard work. (lifts a mug cake) 'Here's to another 3 years...and many more'

    1. Oh, Joanna...thank you so much! Your sweet comment illustrates exactly why I love is so gratifying to hear that you find my recipes and tips both helpful and enjoyable. 🙂 I really appreciate you sharing that with me, and I hope your summer is off to a fantastic start!

  5. Awww! The cards from your little ones are adorable! Congrats on the 3 year mark! Hopefully it continues! I enjoy your recipes!

    1. Thank you, Brittany! Aren't those cards the sweetest?! And I'm so glad you've been enjoying my recipes...I plan on forging ahead for many years to come! 😉

  6. Samantha, Happy Blogiversary! I hope you will keep posting for another 3 x 20 years or more! You are so talented and generous in what you share and now this fantastic giveaway is beyond words. Being a school teacher I could tell that those precious and amazing homemade congratulatory cards were made with lots of love. Thank you again for helping me be the best baker and cook I can be.

    1. Thank you so much, Kay...what a thoughtful, heartwarming comment! I am so happy to hear that you enjoy my blog and recipes so much, and I plan on continuing to share for many years to come. 🙂 Hope you're having a fantastic week!

  7. Happy Happy Blog Anniversary, Samantha! Congrats on 3 years! These mug cakes are SO adorable! Sprinkles are the perfect way to celebrate! Love the pretty cards, so sweet of your little ones 🙂

    1. Thank you, Kelly! One of the best parts of blogging has been my "co-workers" happy to have gotten to know you. 🙂

  8. Hi Samantha, congratulations! I took a little internet break and am now catching up - this cake is perfect for this - yum. The cards your kids made - oh my 🙂

  9. Congrats Samantha! These mug cakes are so cute and perfect for celebrating 🙂