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Marshmallow French Toast Mug with Caramel Sauce

Marshmallow French Toast Mug with Caramel Sauce
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Yield: 4 servings
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Have a sweet start to your morning… or brunch, dinner, lunch, dessert, afternoon tea! There’s no time of day this microwave French toast in a mug wouldn’t work! With gooey marshmallow, crunchy walnuts and a creamy caramel sauce, it’s so quick to make, like a cross between French toast and a mug cake, which is to say, it is everything we’ve ever wanted!

Nina L. Palmer
by Nina L. Palmer
Nina L. Palmer

Nina Palmer is a recipe developer and editor for Eatwell101 since 2013. She is passionate about food and culture and specializes in sweet recipes, desserts, baking, as well as developing editorial content.

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Updated Aug 13, 2025
Table of content

With gooey marshmallow, crunchy walnuts and a creamy caramel sauce, it's so quick to make, like a cross between French toast and a mug cakePhoto credit: © Eatwell101.com

Ingredients list for the Marshmallow French Toast Mug

Yield 4 servings:

  • 1/3 cup (80ml) whole milk
  • 2 large eggs
  • 1 teaspoon vanilla extract
  • 1/2 teaspoon ground cinnamon
  • 1 tablespoon butter, softened
  • 4 slices sandwich bread, cubed
  • 1 tablespoon of toppings per mug (marshmallow, walnuts)
  • Caramel sauce, for serving (here’s a good recipe)

With gooey marshmallow, crunchy walnuts and a creamy caramel sauce, it's so quick to make, like a cross between French toast and a mug cakePhoto credit: © Eatwell101.com

With gooey marshmallow, crunchy walnuts and a creamy caramel sauce, it's so quick to make, like a cross between French toast and a mug cakePhoto credit: © Eatwell101.com

Directions

1. In a large bowl whisk together milk, eggs, vanilla extract and cinnamon. Set aside.

2. Lightly butter the inside of 4 microwave safe mugs (approx. 8 ounces). Divide half of the bread between the mugs. Top bread with half the marshmallows and walnuts. Repeat the layering with remaining bread and toppings.

3. Gently pour milk mixture over the top of each mug, dividing evenly between the cups.

4. Microwave each mug on high for about 1 minute and 15 seconds or until milk mixture is set. Watch carefully because the French toast will puff in the microwave. Serve warm with a good drizzle of caramel sauce. Enjoy!

With gooey marshmallow, crunchy walnuts and a creamy caramel sauce, it's so quick to make, like a cross between French toast and a mug cakePhoto credit: © Eatwell101.com

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Nutrition Info (Beta version)
* The presented values are approximate and shouldn't be considered as accurate. Please calculate your OWN nutrition information in a database using the brand names you have at hand. Each brand is different and nutrition information can vary.
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