Mug Cake Recipe

I truly believe that the best desserts are the ones you can make on a whim, without a lengthy process or a pile of dishes.

When that deep craving for a rich, comforting dessert hits, the last thing you want is a long prep time or a sink full of dishes. This recipe for a single-serving molten dulce de leche mug cake recipe delivers maximum flavor with minimal effort, ready in under 2 minutes from pantry to plate. It’s the perfect solution for a late-night sweet treat or satisfying a serious chocolate/caramel craving without baking an entire cake. We’ll guide you through a simple layering technique to ensure a perfectly gooey, molten center every single time. This version is far superior to basic mug cakes, offering a sophisticated salty-sweet finish that feels truly indulgent and makes for easy family-friendly desserts.

Ingredients

• 60 g (1/2 cup) all-purpose flour
  Use standard all-purpose flour for best results; a gluten-free blend may work, but adjust liquid slightly.
  Make sure to spoon and level the flour, don’t pack it into the measuring cup.
• 35 g (2 1/2 tablespoons) granulated sugar
  Provides essential sweetness and structure to the cake.
  For a richer flavor, you could swap some with brown sugar, but granulated keeps the crumb light.
• 2 g (1/2 teaspoon) baking powder
  Essential leavening agent for a fluffy texture in the microwave.
  Ensure your baking powder is fresh for proper rise in the microwave.
• 1 pinch fine sea salt
  Balances the sweetness of the dulce de leche and enhances the overall flavor.
  Use fine sea salt or kosher salt, but avoid table salt which can be too sharp.
• 60 ml (1/4 cup) whole milk
  Provides necessary fat and moisture for a tender crumb.
  For a richer flavor, use whole milk; 2% milk will work but may be slightly less tender.
• 15 ml (1 tablespoon) vegetable oil
  Adds moisture and helps keep the cake from drying out during microwave cooking.
  Can swap for melted butter or a neutral-flavored oil like canola or sunflower oil.
• 2.5 ml (1/2 teaspoon) alcohol-free vanilla extract
  Enhances the overall flavor profile without overpowering the caramel.
  Using alcohol-free prevents the alcohol from interfering with the microwave cooking process in small amounts.
• 2 tablespoons dulce de leche, plus 1 teaspoon for garnish
  The star ingredient for the molten center and topping.
  Use high-quality store-bought dulce de leche; ensure it’s thick enough to hold its shape for the center.
• 1 pinch coarse sea salt, for garnish
  Provides a textural and flavor contrast (salty-sweet).
  Maldon salt flakes or a high-quality coarse finishing salt are ideal here.

Optional (plan-ahead): If you’re shopping for the week, I put this into a 4-Week Meal Plan + Grocery Lists so dinner’s already decided before your day gets busy.

Instructions

1. Combine Dry Ingredients
   In a microwave-safe mug (12-14 oz capacity), whisk together the all-purpose flour, granulated sugar, baking powder, and fine sea salt until well combined and no lumps remain.
   Use a mug that is at least 12 oz to allow room for the cake to rise without overflowing during cooking.
2. Add Wet Ingredients
   Add the whole milk, vegetable oil, and alcohol-free vanilla extract to the dry ingredients in the mug. Stir with a small whisk or fork until just combined and smooth.
   Do not overmix the batter; a few small lumps of flour are fine and will prevent a tough texture. I find that using a fork for mixing helps me stop before I overwork the gluten.
3. Layer the Molten Heart
   Spoon half of the batter into the bottom of the mug. Create a slight indentation in the center of this batter layer. Carefully spoon 2 tablespoons of dulce de leche into this indentation.
   The indentation helps hold the dulce de leche in place so it doesn’t spread too thin. Ensure the dulce de leche is mostly contained by the batter, but don’t worry about perfect coverage for this simple mug cake recipe.
4. Cook the Cake
   Gently spoon the remaining batter over the dulce de leche, carefully covering it as much as possible to encapsulate the molten center. Microwave the mug cake on high power for 60-90 seconds.
   Cooking time varies by microwave wattage; start with 60 seconds and check for doneness before adding 10-second intervals.
   The cake is done when it is puffed up, set around the edges, and springs back slightly when touched. If it looks rubbery or dry, reduce cooking time next round; most microwave ovens cook quickly, and even 10 seconds too long can make a difference.
5. Garnish and Serve
   Carefully remove the hot mug from the microwave. Let the finished mug cake cool for 1-2 minutes. Drizzle the additional 1 teaspoon of dulce de leche in a free-form spiral pattern over the top.
   The cooling period allows the cake to set and ensures the center remains molten. Finish with a delicate sprinkle of coarse sea salt over the cake for the best textural and flavor contrast for this mug cake recipe.

Variations for Your Mug Cake Recipe

While this dulce de leche version is a decadent treat, this basic **mug cake recipe** is flexible. Feel free to experiment with different fillings and toppings to make it a new family favorite every time you make it.

• Swap the Molten Center: Instead of dulce de leche, you can easily use 2 tablespoons of Nutella, a scoop of peanut butter, or even a couple of squares of white chocolate for a different flavor profile.
• Add Texture: Fold in a tablespoon of chopped walnuts, pecans, or mini chocolate chips into the batter before layering to add crunch.
• Toppings: Top the finished **mug cake** with whipped cream, vanilla ice cream, or a dusting of powdered sugar in addition to the dulce de leche drizzle.

Mug Cake Troubleshooting and Tips

Microwave baking can be tricky, but these tips will help ensure a perfect result every time you make this **mug cake recipe**.

• Why is my mug cake rubbery or tough? This is almost always caused by overmixing the batter or overcooking it. Stir gently until just combined (a few small lumps are fine), and do not cook beyond 90 seconds. If it’s still rubbery, shorten the cooking time next time.
• My cake overflowed in the microwave. Ensure you are using a large mug (12-14 oz capacity) to give the cake enough room to rise. The batter should only fill the mug about halfway before cooking.
• How do I get the molten center to stay gooey? The layering technique is key; ensure the dulce de leche is completely covered by batter before cooking. The cake will look done on top while the center remains molten.

FAQs

Can I make the batter ahead of time?

Yes, prepare the batter, transfer it to the mug, cover it, and store in the refrigerator for up to 12 hours. Cook directly from the fridge, adding 10-15 seconds to the cooking time. This makes for easy meal prep during the week for a healthy snack like this **mug cake recipe**.

What kind of mug works best?

A heavy ceramic mug (12-14 oz) is ideal. Avoid thin glass or plastic containers which can heat unevenly in the microwave. I’ve found that a wide, short mug also helps distribute heat more evenly for a consistent cook on this specific **mug cake**.

What if I don’t have dulce de leche?

A thick caramel sauce or a peanut butter sauce can be used as a substitute for the molten center, though the texture will be slightly different. For a low-carb option, try a sugar-free chocolate spread instead.

Can I use this recipe to make multiple mug cakes?

Yes, just repeat the steps for each individual serving. We recommend making them one at a time to ensure even cooking and best results for this **mug cake recipe**.

Can I bake this in the oven?

Yes, pour the batter into a small, oven-safe ramekin. Bake at 350°F (175°C) for 10-12 minutes, or until the top is set. This might make the center less molten, but still delicious.

What is coarse sea salt and where do I find it?

Coarse sea salt, often sold as flaky sea salt (like Maldon), adds a crunchy texture and bursts of flavor. It can be found in most grocery stores near other spices. It’s truly a game changer for finishing desserts like this **mug cake**.

Conclusion

This easy molten dulce de leche **mug cake recipe** proves that you don’t need fancy equipment or a long process to enjoy a truly decadent dessert. The combination of a soft, moist cake and a gooey caramel center makes for the perfect quick fix. Pin this recipe for the next time a craving hits, or surprise someone special with a fast, homemade treat this week.

mug cake recipe

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• Author: Madison Clarke
• Total Time: 8 minutes
• Yield: 1 serving 1x
• Diet: General

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Description

A single-serving molten dulce de leche mug cake, quick to prepare in under 2 minutes, perfect for satisfying a late-night craving with minimal effort. The layering technique ensures a perfectly gooey, molten center.

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Ingredients

Scale 1x2x3x

• 60 g (1/2 cup) all-purpose flour
• 35 g (2.5 tablespoons) granulated sugar
• 2 g (1/2 teaspoon) baking powder
• 1 pinch fine sea salt
• 60 ml (1/4 cup) whole milk
• 15 ml (1 tablespoon) vegetable oil
• 2.5 ml (1/2 teaspoon) alcohol-free vanilla extract
• 2 tablespoons dulce de leche, plus 1 teaspoon for garnish
• 1 pinch coarse sea salt, for garnish

Optional (plan-ahead): If you’re shopping for the week, I put this into a 4-Week Meal Plan + Grocery Lists so dinner’s already decided before your day gets busy.

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Instructions

1. Combine Dry Ingredients: In a 12-14 oz microwave-safe mug, whisk together the all-purpose flour, granulated sugar, baking powder, and fine sea salt until well combined.
2. Mix Wet Ingredients: Add the whole milk, vegetable oil, and alcohol-free vanilla extract to the mug. Stir gently with a fork until just combined and smooth; avoid overmixing.
3. Layer Molten Center: Spoon half of the batter into the mug, create an indentation, and carefully add 2 tablespoons of dulce de leche. Gently cover with the remaining batter.
4. Cook Mug Cake: Microwave on high power for 60-90 seconds. The cake is done when puffed up and set around the edges. Adjust cooking time in 10-second intervals if needed, but avoid overcooking.
5. Garnish and Serve: Carefully remove the hot mug and let cool for 1-2 minutes. Drizzle with the additional 1 teaspoon of dulce de leche and sprinkle with coarse sea salt before serving.

Notes

Use a large 12-14 oz heavy ceramic mug to prevent overflow during cooking. To avoid a tough or rubbery texture, do not overmix the batter and closely monitor the cooking time, as microwave wattage varies.

• Prep Time: 5 minutes
• Cook Time: 3 minutes
• Category: Dessert
• Method: Microwave Cooking
• Cuisine: General

Nutrition

• Serving Size: 1 cake
• Calories: 380 kcal
• Sugar: 30 g
• Sodium: 100 mg
• Fat: 18 g
• Saturated Fat: 4 g
• Unsaturated Fat: 14 g
• Trans Fat: 0 g
• Carbohydrates: 50 g
• Fiber: 1 g
• Protein: 6 g
• Cholesterol: 10 mg