5 from 4 votes

Microwave Lava Mug Cake (TikTok!)

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Indulge in the irresistible charm of a warm, gooey chocolate mug cake. Within a few minutes, your kitchen will be filled with the tantalizing aroma of a chocolate dessert that will satisfy your cravings.

Skip the fuss of baking a whole cake; this chocolate lava cake recipe is designed specifically for your microwave, promising both ease and deliciousness for chocolate lovers.

microwave lava mug cake

Why you will love making Chocolate Lava Mug Cake

This molten lava mug cake takes longer to prep than “bake” but can be done in minutes. Minutes, I tell you! If you have never tried a mug cake, you are not alone.

Most people default to traditional dump cakes or real cakes and fail to take advantage of a decadent dessert in minutes.

These microwave mug recipes can be seen all over tiktok, and as an avid user there (find us here on TrishaAndCharlotte), I have been testing out some of the most popular viral recipes to see if they work. Original inspiration: BakingEnvy on TikTok!

The good news about this viral recipe – a 1-minute Molten Lava microwave mug cake DOES work, although read a few of my recipe notes to ensure you get it right the first time.

Lava Cake Ingredients

  • Two tablespoons of soft, unsalted butter
  • 1/4 cup white granulated sugar
  • Two tablespoons of boiling or hot water
  • Two tablespoons of cocoa powder
  • 1/4 cup of self-rising flour
  • 4 bars of dark or semi-sweet baking chocolate
collage of ingredients for molten lava mug cake.

More TikTok Viral Recipes: You can check out all my tiktok viral recipes here or visit them individually.

How to make Lava Mug Cake in the microwave

Choose a mug or microwave-safe container with enough room for the cake to rise without spilling.

Prepare the hot water. To start, you’ll need boiling water. Heat a cup of water in a saucepan or microwave some until hot. This will help melt the butter and dissolve the sugar. Keep this ready as your first step.

Mix Wet Ingredients: In a microwave-safe mug, blend the room-temperature butter, white sugar, and only two tablespoons of hot water. Stir until the sugar is dissolved and the mixture is smooth.

Add the dry components:

  1. To your mug, add two tablespoons cocoa powder and 1/4 cup self-rising flour (not regular flour unless you are making it self-rising; see below).
  2. Stir the mixture until a cocoa batter forms, about 1 minute.
  3. Make sure you scrape the sides of the mug so there isn’t excess powder.
stir together mug cake batter.

The Chocolate Center: Break 2-4 mini bars of your chocolate and drop them into the batter. Traditionally, in a molten lava cake, this is dark chocolate.

You can also buy semi-sweet white chocolate, bittersweet chocolate, or regular milk chocolate. Place in a mug and stir, so the batter covers the chocolate.

add chocolate chunks for ooey gooey center.

Microwave Magic: Place your mug in the microwave and heat on high for 1 to 1 1/2 minutes. Remember that how fast your mug cake cooks will depend on a few things: your mug’s size and your microwave’s wattage.

Mug cakes need a minute to rest once they come out of the microwave to solidify, so they may look a little gooey initially, but give them a minute.

You can cook it for up to 30 seconds more if you prefer a cake-like batter.

cooking microwave mug cake.

Serve and enjoy. Once done, you’ll have a delicious chocolate mug cake with a gooey center reminiscent of brownie batter. Pair with a scoop of vanilla ice cream for an even more indulgent treat.

Baking note: This batter is a brownie-type batter, and the extra pieces of chocolate will melt into the mug and produce melted chocolate under the batter.

Do not mistake the molten center for raw cake batter (melted chocolate chunks).

melted hot chocolate center.
The melted chocolate should be visible.

Making Homemade Self-Rising Flour

I always keep self-rising flour in the house in addition to regular flour. Self-rising flour is simply a combination of flour, baking powder, and salt.

Creating that in only a few tablespoons is almost impossible, but it’s easy to make in larger quantities. Just use what you need and set aside the rest for later.

  • To translate regular flour to self-rising flour, combine 1 cup flour, 1 1/2 teaspoons of baking powder, and 1/4 teaspoon of salt.
  • Mix well with a whisk before portioning the molten chocolate cake mug recipe.
bag of self rising flour.

Ultimate Toppings for Your Microwave Cake

Here are some mouthwatering toppings that you can enjoy along with your gooey chocolate cake creation:

Cocoa Powder: Sprinkle a dusting of unsweetened cocoa powder over the molten lava cake to add a rich and slightly bitter contrast to the sweetness of the cake.

Powdered Sugar: Lightly sift powdered sugar over the warm cake before serving. It also creates a beautiful contrast against the dark and luscious cake.

Whipped Cream: A dollop of homemade or store-bought whipped cream on top of moist chocolate cake is a classic choice.

Ice Cream: For extra indulgence, serve your molten lava cake with a scoop of ice cream. Vanilla ice cream is a popular choice, but feel free to experiment with different flavors like chocolate, caramel, or even mint chocolate chip.

spoonful of chocolate dessert.
Instant desserts are a great way to indulge with cravings in minutes!

Lightning-Fast Dessert Recipes for Urgent Cravings

If this chocolate lava mug cake excites you about quick and easy desserts, you’re in for a treat!

Here are a few favorites you might want to try:

  • Brownie in a Mug: If you’re a fan of the classic brownie but want a quick fix, this is the answer. All the fudgy goodness without the long wait. Microwave cakes for the win!
  • No-Bake Cake Pops (Starbucks-style): Love those little cakey delights from Starbucks? You can recreate that magic at home with a few simple ingredients and no oven time.
  • Oreo Mug Cake: Take the beloved cookies and cream flavor to the next level. A microwave, a few Oreos, and a couple more ingredients are all you need for this TikTok viral dessert recipe.
  • Single-Serve Rice Krispie Treats: Who says you need a big batch? Get that perfect combination of crispy and gooey in just the right size.
5 from 4 votes

Microwave Lava Cake (TikTok Viral)

Prep Time 5 minutes
Cook Time 1 minute
Total Time 6 minutes
Rich, savory perfection—this chocolate lava cake in microwave, homemade cake in 1 minute with cocoa powder, flour, and sugar, is the perfect base for a melty, gooey chocolate center. This viral TikTok mug cake recipe is broken down step by step for a home-cooked microwave dessert in minutes.


  • 2 tablespoons of soft or melted butter
  • 1/4 cup white sugar
  • 2 tablespoons of boiling/hot water
  • 2 tablespoons of cocoa powder
  • 1/4 th cup of self rising flour
  • 4 bars of dark or semi-sweet baking chocolate


  • BOIL WATER – This recipe needs 2 tablespoons of boiling or very hot water to start. Simple add some water into a microwave safe glass, place in microwave and heat for about 3 minutes until boiling. Very carefully remove glass and set aside for the rest of the recipe.
  • Combine your soft room temperature or pre-melted butter, white sugar and boiling water. Stir well so ingredients combine and sugar dissolves. 
  • Add 2 tablespoons of cocoa powder and 1/4th cup self rising flour.
  • Stir the mixture until a cocoa batter forms, about 1 minute. Make sure you scrape the ides of the mug so there isn’t excess powder. 
  • Break off 2-4 mini bars of chocolate for the center of your cake. Traditionally, in a molten lava cake, this is dark chocolate. You can also buy semi-sweet, white chocolate and regular milk chocolate. Place in mug and stir so the batter covers the chocolate. 
  • Microwave mug cake on high for 1 minute to 1 minute 30 seconds.  
  • You can eat the lava cake right of the mug or combine with some vanilla ice cream for a real treat. 



  • Keep in mind that how your mug cake cooks will depend on a few things – the size of your mug and the temperature of your personal microwave. Mug cakes need a minute to rest once coming out of the microwave to solidify, so it may look a little gooey initially but give it a minute. Molten lava is more of a brownie consistency than a traditional baked cake. You can also cook it up to 30 seconds more if you prefer a little more cooked.
  • This batter is a brownie type batter and the extra chocolate bars will MELT into the mug and produce melted chocolate under the batter. Do not mistake that for raw batter (melted chocolate) and overcook your batter.
  • Nutrition

    Serving: 1 | Calories: 1541kcal | Carbohydrates: 307g | Protein: 19g | Fat: 29g | Saturated Fat: 17g | Polyunsaturated Fat: 9g | Cholesterol: 31mg | Sodium: 1592mg | Fiber: 10g | Sugar: 200g

    Nutritional Disclaimer: The nutritional data provided here is auto-calculated and intended for your convenience only. As it’s generated via automation, its accuracy may be compromised. For precise nutritional insight, please compute the values utilizing the actual ingredients in your recipe through your chosen nutrition calculator or application.

    Sharing of this recipe is encouraged and appreciated. Copying of full recipe to any social media is prohibited.

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    5 from 4 votes

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