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How to Make Marshmallows

Learn how to make homemade marshmallows with gelatin, hot syrup, whipping, setting, cutting, safety tips, mistakes, troubleshooting, and FAQs.

Food & CookingEdited by Pramod Tiwari
2 min read

Quick Answer

To make marshmallows, bloom gelatin, boil sugar syrup to the correct temperature, whip syrup into gelatin until thick and fluffy, spread in a dusted pan, set, then cut.

Ingredients and Tools

  • Gelatin
  • Water
  • Sugar
  • Corn syrup or similar syrup
  • Salt
  • Vanilla
  • Powdered sugar
  • Cornstarch
  • Stand mixer
  • Saucepan
  • Candy thermometer
  • Pan

Safety Precautions

  • Hot sugar syrup can cause serious burns.
  • Keep children away from the stove during syrup cooking.
  • Use a deep saucepan to reduce bubbling risk.
  • Do not touch hot syrup with fingers.
  • Check gelatin and ingredient restrictions before serving.

Step-by-Step Instructions

  1. Step 1

    Prepare pan

    Grease and dust a pan with powdered sugar and cornstarch.

  2. Step 2

    Bloom gelatin

    Sprinkle gelatin over water and let it soften.

  3. Step 3

    Boil syrup

    Cook sugar, syrup, water, and salt to the target candy temperature.

  4. Step 4

    Whip carefully

    Pour hot syrup slowly into gelatin while mixing.

  5. Step 5

    Beat until fluffy

    Whip until thick, glossy, and much lighter.

  6. Step 6

    Spread and set

    Spread into the pan and let set undisturbed.

  7. Step 7

    Cut and coat

    Cut into squares and coat edges with the sugar-starch mix.

Practical Example

Example: You bloom gelatin, cook syrup to soft-ball stage, whip until fluffy, spread overnight, then cut into coated cubes.

Common Mistakes

  • Skipping thermometer
  • Touching hot syrup
  • Underwhipping
  • Using an unprepared pan
  • Cutting before set
  • Storing in humid air

Troubleshooting

Marshmallows are sticky

Coat with more powdered sugar and cornstarch and store airtight.

Marshmallows are dense

Whip longer next time until the mixture is thick and fluffy.

Syrup crystallized

Avoid stirring after boiling and keep pan sides clean.

They did not set

Check gelatin amount and syrup temperature next batch.

FAQs

Do I need a candy thermometer?

It is strongly recommended because syrup temperature controls texture.

Can I make marshmallows without corn syrup?

Some recipes use alternative syrups, but texture may change.

How long do marshmallows take to set?

Several hours is common; overnight gives cleaner cuts.

How should I store homemade marshmallows?

Store coated marshmallows in an airtight container away from humidity.

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