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Molten Chocolate Mug Cake Recipe

Yield: Serves 2
Prep Time: 5 minutes
Cook Time: 3 minutes
Total Time: 10 minutes

4 tbsp unsalted butter, cut into pieces
1 oz bittersweet chocolate, chopped + two 1/2 oz pieces of bittersweet chocolate (see note)
1/4 cup sugar
2 large eggs
2 tbsp unsweetened cocoa powder
1 tsp vanilla paste or extract
1/4 tsp salt
1.25 oz all-purpose flour (1/4 cup)
1/2 tsp baking powder
vanilla ice cream, for serving

Select two mugs that hold at least 11oz of liquid in them (about a cup and a half of water).

Microwave the butter and chopped bittersweet chocolate in a large bowl for about 1 minute, stirring halfway through, until fully melted. Set aside.

Whisk the sugar, eggs, cocoa powder, vanilla, and salt in a medium bowl, then whisk this into the melted butter and chocolate. Whisk in the flour and baking powder, then evenly divide the batter between the two mugs.

Put the mugs on opposite sides of the microwave turntable, and microwave at 50% power for 45 seconds. Stir the batter well with a spoon, then microwave for another 45 seconds at 50% power. Press the two chocolate squares down into each cake until it is nestled nicely on the surface. Microwave for an additional 35 seconds at 50% power. At this point the cakes should be done. The cake may be a little gooey on top, but you can check that the interior of the cake should be around 200 degrees F. Let the cakes sit for 2 minutes while the heat continues to cook the cakes slightly, then serve with vanilla ice cream. Enjoy!

This recipe was developed for a full-size, 1200-watt microwave, according to Cook’s Illustrated.

Recipe adapted from Cook’s Country October/November 2013.


Fifteen Spatulas is a weekly cooking video series sharing simple recipes from scratch. The purpose is to show cooks of all levels that cooking from scratch is much easier than they may think.

Video Rating: / 5


  1. Noyyo Parulekar

    How many watts is your microwave? I want the timing to be right when I make this.

  2. Was delicious! Got it right my first time and finished it with a scoop of cookie dough ice cream! Shared to my friends, great recipe!

  3. i tried it and it was amazing thanks for sharing ur recipe love you keep making new resipe

  4. Frank Heberdascher

    Delicious! This really is the best recipe!

  5. Destiny Hills

    great video , it tastes great !!

  6. Hey can I make this exactly the same but in the oven for less time

  7. Omg this recipe is AMAZING!!!! First time I actually found a good recipe! My family and I enjoyed it very much!

  8. TheFourCousinProductions Vietnam

    I'm gonna make this right now!

  9. the cake looks nice

  10. OfficialLuke

    Oh wow my mouth is watering! I've tried other recipes and they always turn out dry! Will give this a go 🙂 Thanks for sharing :)

  11. Marlenn Bunawan

    Heyy, i really want to try it so bad. But i just want to make it for my own, what if i only want one serving??

  12. Isn't one egg is too much for mug cake? You use 2 eggs now ?Whatever you say its delicious so i will try this soon! Nice video.

  13. I tried it out and the tase was good but not awesome. And the cooking time didn't match at all. I stared like you said, wanted to stir it but it was already half baked. After 30 more seconds it was already ready and no more gooey at all. But it was okay.

  14. Another great recipe! Thank you.  Works great on the boat…simplicity of prep, plus easy to find ingredients. Very well presented…these are quick which is important because Sock Monkey tends to eat all the batter if baked things take too long!

  15. Sarah Smiles

    Just tried did and it was so good!!!! 

  16. thanks love this!!
    ure so pretty~!!

  17. what if you cant change the power on your microwave

  18. youreanonshareer

    I will try this (someday) and try to give an update on how it turns out lol. I've made the ones from foodwishes and they turn out to be the best so far, let's see how this one comes out.

  19. Kimberly Nicole

    Can't wait to try this.

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