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Microwave Fantasy Fudge

This microwave fantasy fudge recipe makes the creamiest, chocolatiest, nuttiest fudge you will ever taste. Oh, and here’s the best part: it’s a breeze to make!

All you need is a microwave and 7 simple ingredients. It doesn’t get any easier than this.

Homemade Chocolate Fantasy Fudge
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Seriously, don’t sleep in this recipe. It’s so insanely sweet and creamy with a crunchy kick that’s irresistible. 

Fantasy fudge is the stuff dreams are made of. But you won’t need a nap after whipping together this easy-peasy recipe.

The Easiest Microwave Fantasy Fudge Recipe

Fantasy Fudge was the brainchild of the Kraft company in the 1960’s.

It originally debuted on the back of the Jet-Puffed Marshmallow Cream jar and was an immediate hit. But then, Kraft changed the recipe on us!

Don’t worry, this recipe is the OG. The only difference is everything melts in the microwave to make your life easier.

This recipe comes together in just 20 minutes from start to finish. I’m telling you, there is no way you can fudge this up! 

Stacks of Microwave Fantasy Fudge

Tips and Tricks For Making the Best Fudge

Check out these easy tips and tricks to make your homemade fudge the life of the party.

  • Add more flavor! You can easily switch up or add more elements to make your fantasy fudge even more fantastic! How about adding roasted pecans, cherries, butterscotch chips, and white chocolate chips? There are no wrong answers. 
  • Use butter. While the original recipe only called for margarine, try using butter for a much better flavor.
  • No marshmallow cream? No problem! Instead of using marshmallow creme, a bag of marshmallow minis works just as well.
  • Line the pan with foil. Instead of greasing your pan, line it with a non-stick foil. That way, once the fudge hardens, you can easily lift the whole tray by the foil. 
  • Make it festive. Want to make this fudge for the holidays? Add a festive twist with crushed peppermint candies on top. 
  • Peanut butter fudge. Want to make peanut butter fudge instead? Easy! Just swap the chocolate chips with peanut butter. It’s so peanut buttery and delicious!
  • White chocolate fudge. Simply swap chocolate for white chocolate. However, white chocolate chips will not melt as quickly as milk chocolate chips do. So, you may have to put it back in the microwave to help it melt faster. 

How To Store Fudge

Fudge keeps for a long time, so feel free to make a big batch! Here’s everything you need to know about storing those leftovers. 

  • To Store. Place fudge in an airtight container and store at room temperature for up to 2 weeks. Or, pop it in the fridge where it will stay fresh for up to one month. 
  • To Freeze. Wrap the fudge tightly in plastic wrap or aluminum foil, and place it in the freezer. It will stay fresh for up to 3 months. When ready to eat, thaw in the fridge overnight. 

Pro tip. Store the fudge in an airtight container, separating each layer with parchment or wax paper so it’s easier to take them apart.

Microwave Fantasy Fudge



Prep time


Cooking time




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Microwave fantasy fudge is just as easy as the stovetop, and tastes just as delicious! The hardest part is patiently waiting for it to cool.


  • 3/4 cup butter or margarine

  • 3 cups white sugar

  • 2/3 cup evaporated milk

  • 12 ounces semisweet chocolate chips

  • 1 jar (7-ounce) marshmallow creme

  • 1 teaspoon vanilla extract

  • 1 cup chopped walnuts, optional

  • candy thermometer


  • Grease a 9×13-inch or 9×9-inch baking pan, depending on the desired thickness. Set aside.
  • Place the butter into a large microwave-safe bowl. Microwave in 20-second intervals until melted.
  • Add the sugar and evaporated milk and whisk until smooth and well blended.
  • Place the bowl back into the microwave on high for 3 minutes. Stir well, then microwave again for 2 minutes.
  • Carefully take the bowl out of the microwave. Using a spatula, scrape the sides and bottom of the bowl.
  • Microwave the mixture for another 3 minutes, stir well, and microwave again for 1-2 minutes or until the mixture measures 234°F on a candy thermometer.
  • Carefully take the bowl out of the microwave and add the chocolate chips. Stir well until smooth and melted.
  • Add the marshmallow creme, vanilla, and walnuts (if using), and mix until well combined.
  • Pour the fudge into the prepared dish, even the top with a spatula, then leave to cool for 1-2 hours.
  • Slice when firm, and enjoy!


  • Place fudge in an airtight container and store at room temperature for up to 2 weeks.
Microwave Fantasy Fudge

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Kim - InsanelyGood
Hey there! I'm Kim. I love running, cooking, and curling up with a good book! I share recipes for people who LOVE good food, but want to keep things simple :)

6 thoughts on “Microwave Fantasy Fudge”

    • Hi Malin, here’s how to adjust the cooking time when doubling the recipe:

      For the first microwave step, where you initially cook the mixture for 5 minutes until it begins to boil, you might extend this to 7-8 minutes but watch closely for the boiling signs. After stirring and scraping the sides, instead of another 5 1/2 minutes, you might start with an additional 3-4 minutes, check the consistency, and then continue in 1-2 minute intervals as needed.


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