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rainbow mochi
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4.75 from 4 votes

Rainbow Mochi

This rainbow mochi is a super fun colorful treat that's easier to make than it looks. It's also naturally vegan and gluten free!
Prep Time5 minutes
Cook Time3 minutes
Assembly Time20 minutes
Course: Dessert, Snack
Cuisine: Asian American, Japanese
Servings: 20 marshmallow sized pieces

Ingredients

  • 1 cup mochiko (120g)
  • 1/2 cup sugar (100g)
  • 1/2 cup water
  • 1/4 cup coconut milk optional, see notes
  • 1/2 tsp extract of choice (vanilla, coconut, almond) optional, see notes
  • food dye, various colors
  • katakuriko (potato starch) for dusting

Instructions

  • Whisk the flours and sugar.
  • Add water. Add coconut milk and extract at this time too, if using.
  • Steam for 15 minutes in any sort of steamer. OR microwave in a well covered dish for two minutes and 30 seconds. I usually check for doneness and stir after two minutes.
  • Turn out the cooked mochi onto a cutting board or silicone mat and knead into a log. Be careful, as it will be very hot.
  • Cut 1/2 of the log to dye. Keep remaining 1/2 covered so it doesn't dry out.
  • Cut the 1/2 chunk of mochi into 4 equal pieces (or however many colors you want). Working one at a time, place one drop of food coloring on each piece and knead to evenly combine. Keep any pieces you're not kneading covered with a damp cloth. Keep hands moistened with water to keep from sticking, but do not add any more water than necessary or the dough will become too soft and sticky. If your dough starts becoming too wet, use katakuriko to keep it from sticking to your kneading surface.
  • Roll each colored mochi into a thin noodle about 18 inches long. Cut each noodle in half so you have two stripes of each color.
  • Arrange the colorful stripes to create a rainbow of alternating colors that form a rough rectangle. Please see pictures in blog post above for more detail.
  • Place the remaining white mochi log on top of your rainbow.
  • Wrap the edges of the rainbow around the white mochi, pinching to seal.
  • You should now have a fat mochi log with rainbow colors on the outside and white on the inside. Roll this log into a thin, long log to your desired thickness and slice into pieces. I like mine to be about marshmallow sized.
  • Toss the pieces in katakuriko to prevent them from sticking and store any leftovers in an airtight container at room temperature.

Notes

  • Coconut milk will make your mochi stay moist for longer, which is good if you want to keep your mochi over a couple days. However, it does make the mochi more soft and will be flat, instead of a bouncy pillow shape. See blog post explanation above for more information on why coconut milk is an optional ingredient.
  • I sometimes like to add flavored extracts just for fun. It's totally optional and up to you.