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5 from 1 vote

How to Make Marshmallow Fondant

Prep Time
20 mins
Total Time
20 mins
Learn how to make marshmallow fondant with simple ingredients for cake decorating. This homemade fondant recipe for cakes is quick, easy and cheap.
Servings: 2 Cups
Course: Dessert
Cuisine: American
Calories: 19 kcal
Author: CakeWhiz


  • 1 packet White marshmallows My packet was 8.82 oz/250g
  • 1 tbsp Water
  • 1 tbsp Vanilla extract Or any other extract
  • 3 - 4 cups Sugar Powdered
  • Vegetable shortening As needed


  1. Dump the marshmallows in a deep microwavable bowl.

  2. Add water and vanilla extract.
  3. Heat in the microwave for 1 minute. Remove the bowl and give everything a stir. Then, heat it in the microwave for another 1 minute.
  4. Finally, take the bowl out of the microwave and stir everything with a spoon until you have a smooth and sticky mixture.
  5. Start adding sugar, 1 cup at a time. By the end, I had used 3 cups of sugar. You may need to use more depending on the type of marshmallows you are using. Keep mixing everything with a spoon until it starts to take a “dough-like form.” At this point, it is best to start kneading with your hands.

    Note: Make sure you grease your hands with A LOT of shortening before you start kneading. The "dough" is extremely sticky. If you are kneading on a table or any other flat surface, make sure you grease that area with A LOT of shortening too.

  6. After a bit of kneading, the “gooey” mixture transforms into fondant.
  7. Note: If your fondant feels too dry, rub it with some shortening to make it pliable or heat it for a few seconds. If your fondant feels too wet, add some more sugar and knead it a bit more.
  8. For storage, grease fondant with some shortening and cover it in a sheet of wax paper and cover it tightly in saran wrap.
  9. Let it sit overnight and it's ready to use the next day (about 24 hours). DO NOT refrigerate fondant!

Recipe Notes

  • Read all my tips above.
  • UPDATE: Please scroll down and read the comments. A few of my readers were kind enough to let me know what can be used instead of shortening in Australia, UK and other places where shortening is unavailable. 
Nutrition Facts
How to Make Marshmallow Fondant
Amount Per Serving
Calories 19
% Daily Value*
Sodium 1mg0%
Carbohydrates 1g0%
Sugar 1g1%
* Percent Daily Values are based on a 2000 calorie diet.