Blueberry Muffin Mug Cake

Enjoy a fresh, warm, blueberry muffin in a mug that's ready in minutes with this simple-to-make, bursting-with-berries, Blueberry Muffin Mug Cake!

Blueberry Muffin Mug Cake with text overlay.

Hi, friends. Let's talk mug cakes, shall we?

Y'all are apparently fans, because the two mug cake recipes I've shared so far on the site get regular features, lots of rave reviews, and have comfortably secured spots in Five Heart Home's lauded top 20 recipes of all time. 😉 The mugs cakes I've previously posted, however, were dessert recipes -- namely, a decadent Chocolate Peanut Butter Mug Cake and a sugary Snickerdoodle Mug Cake. But I recently thought to myself...wouldn't it be fun to change things up a bit and come up with a breakfast mug cake?

Aerial view with spoon scooping up a bite.So when I found myself with a plethora of fresh blueberries last week, concocting this Blueberry Muffin Mug Cake sounded like the perfect way to make good use of them! I basically took my aforementioned Snickerdoodle Mug Cake recipe and my Classic Blueberry Muffins recipe and combined the best elements of both.

The result is a blueberry muffin in a mug that's quickly assembled before being baked in the microwave for a minute or two. The Cliff Notes version? This recipe turns out a fresh, warm muffin that tastes like cake...which means it's pretty much guaranteed to be your new favorite breakfast treat!

Blueberry Muffin Mug Cake with with spoon and fresh berries.

No Egg!

As with my other mug cakes, there's no egg in this one, which prevents the texture from turning rubbery in the microwave. It also means that if you prefer your blueberry muffin slightly undercooked in the center, you don't have to worry yourself with any raw egg concerns.

Recommended Mug Size

Additionally, I've found that a mug cake does best in a straight-sided mug that allows it to cook evenly and rise without overflowing (these white, 14-ounce mugs happen to be my go-tos for perfect mug cakes...which is why you may notice all of my mug cake posts looking eerily similar... 😀 ).

Aerial view of Blueberry Muffin Mug Cake with fresh blueberries and blue and white towel on table.

Cooking Time

All microwaves vary in strength, so be prepared to experiment a bit with cooking duration any time you make a new mug cake recipe.

This Blueberry Muffin Mug Cake does seem to take a bit longer to fully bake than my other mug cakes, presumably because of its plethora of juicy berries.

Feel free to reduce the amount of berries used if you wish...but I'm not sure why you'd want to. 😉

Close-Up with spoon digging in. Okay, enough of my yammering. I think it's obvious enough that this speedy recipe will yield a tantalizing, blueberry-studded breakfast or snack in about the same amount of time it would take you to whip up a bowl of oatmeal. And doesn't a Blueberry Muffin Mug Cake sound way more exciting than oatmeal???

Spoonful of Blueberry Muffin Mug Cake scooped out of mug.

More Blueberry Treats

Aerial view of Blueberry Muffin Mug Cake.

Blueberry Muffin Mug Cake

Enjoy a fresh, warm, blueberry muffin in a mug that's ready in minutes with this simple-to-make, bursting-with-berries, Blueberry Muffin Mug Cake!
Course: Dessert
Cuisine: American
Prep Time: 10 minutes
Cook Time: 2 minutes
Total Time: 12 minutes
Servings: 1 mug cake, which is equivalent to 2 regular blueberry muffins
Calories: 472kcal
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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 cup fresh blueberries
  • Coarse sparkling sugar, optional garnish


  • 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, and vanilla until batter is smooth. Stir in blueberries and pour batter into a 14-ounce (or larger) microwave-safe mug with straight sides. Sprinkle with sparkling sugar, if desired.
  • Microwave on high for 1 ½ to 2 minutes, or until cake is done to your liking. Allow to cool for a couple of minutes before serving.


  • As soon as you transfer the batter to the mug, cook the cake immediately so that the blueberries don't have time to sink to the bottom.
  • 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.
  • 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.


Calories: 472kcal | Carbohydrates: 57g | Protein: 6g | Fat: 25g | Saturated Fat: 16g | Cholesterol: 66mg | Sodium: 228mg | Potassium: 182mg | Fiber: 2g | Sugar: 31g | Vitamin A: 800IU | Vitamin C: 3.5mg | Calcium: 112mg | Iron: 1.5mg
Made this recipe? I'd love to see on IG!Mention @FiveHeartHome or tag #FiveHeartHome!

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Recipe Rating


  1. 5 stars
    Just tried this - was having a rough day and needed a little pick me up. So yummy! Thanks for sharing.

  2. 5 stars
    It is very easy to make. We have prepared this cake many times, because our children love it very much. It is too tasty! Thank You!!!!!!

  3. 5 stars
    My 6-year-old daughter and I made this x3 tonight, it is perfect! She loves to bake with me. Love that no eggs are needed. We used blackberries since that's what we have on hand. And needed to microwave it about 2 minutes longer (so 4 min total.) Fun to wstch it rise up then fall when time was over. We did in 30 second increments to make sure it didn't explode. Will definitely make this again! Tip: add whip cream once it cools down for an extra desserty taste! Yum!

  4. 5 stars
    This mug cake is delicious! It isn't a weird texture at all. Will totally make again. Frozen blueberries worked just fine. 🙂

  5. 5 stars
    This recipe was so good. I substituted oat flour and almond milk. I also used turbinado sugar instead and it tasted wonderful with a great texture!

    1. Fabulous, Jasmine! Glad to hear that your substitutions worked out and thanks for sharing them with the rest of us! 🙂

  6. Blueberries are out of season in my area so I tried using frozen. The only difference seems to be taking on the longer end to bake.

    1. Thanks for sharing your experience, Ilona, and happy to hear you enjoyed these muffins! I've made them with frozen blueberries as well...they do turn out great either way. 🙂

  7. 5 stars
    Completely fabulous! This recipe is bizarre good, and much better than the other recipes i tried!

  8. 5 stars
    I love this recipe. I make it at least once a week. Sometimes I add variations like nutmeg, or I brown the butter. I always melt the butter in a small pan and then add the milk so that it cools down the butter and warms the milk at the same time.

    1. So happy to hear that you enjoy this recipe so much! Browning the butter is such a great idea...sounds delicious! 🙂

    1. Hi there! I'm sorry to hear that. It sounds to me that your mug cake may have been a bit undercooked. If you cook this mug cake long enough, the texture should become light and fluffy. Undercooked, it can be rather gummy. Since all microwaves vary, it can take some trial and error to figure out the perfect length of time to cook it. Good luck if you decide to try it again and hope you're having a great weekend!

  9. 5 stars
    I substituted chocolate chips for the blueberries and had a delicious chocolate chip muffin instead. Well worth it!

  10. 5 stars
    This recipe is divine!! I don't eat sugar so I just added 2tbsp of rice malt syrup to the butter as I melted it. Worked a treat and is so yummy!!

  11. Hello, I was wondering if you knew if it would work to freeze the mug cake's batter in the mug and then pop it in the microwave on busy days? If you have any idea what you'd need to do to make sure it was cooked or if it would even work, I'd love to know! Thanks!

    1. Hi Allanah! I'm honestly not sure if freezing the batter would work. Instead, I might suggest mixing up the dry ingredients ahead of time and transferring to a small container or plastic baggie. That would save at least a little time if you wanted to make a mug cake on a busy would just need to stir in the wet ingredients and blueberries. Good luck! 🙂

  12. Hi Samantha,
    This recipe sounds so good and simple too! I can't wait to try it for my two little boys. Could I use soy milk with this recipe? Thank you.

    1. Hi Selina! I hope that you and your boys love this recipe! I don't see any reason why it wouldn't work just fine with soy milk. 🙂 Enjoy!

  13. I am SO on board with this mug cake! Also, I've been craving blueberry muffins like crazy lately and I like that I can have all those flavors in a fraction of the time with these mug cakes 🙂

    1. Well, Amy, if baby wants blueberry muffins...this mug cake is the shortest route to making that happen! 😉 I hope you both ENJOY!

  14. I love mug cakes, but always burn my mouth on them because I'm not patient :/ It will be so fun to have one for breakfast!

    1. Ha,'re so right! Mug cakes are delicious and dangerous... 😉 Hope you enjoy this breakfast version if you have a chance to try it, and hope you have a fabulous day!

      1. 5 stars
        Samantha, this is amazing!! The texture was a little spongy, but the flavor was amazing. Both me and my mother loved this and I will make it again for sure!!!