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chocolate butter mochi cake
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4.73 from 18 votes

Chocolate Butter Mochi

Chocolate butter mochi is a chewy, fudgy, baked mochi from Hawai'i. This mochi cake is easy to make: just mix all ingredients and bake.
Prep Time5 minutes
Cook Time1 hour
Total Time1 hour 10 minutes
Servings: 8 people

Ingredients

  • 2 cups mochiko 300g
  • 1 tbsp baking powder
  • 1/2 cup dutch process cocoa* 45g
  • 1 cup sugar 100g
  • 3/4 cup brown sugar, packed 150g
  • 1/2 tsp salt 4g
  • 1 tbsp instant coffee optional
  • 1 14 oz can coconut milk
  • 1 12 oz can evaporated milk
  • 2 eggs
  • 1/2 cup (1 stick) butter, melted

Instructions

  • Preheat oven to 350 degrees F.
  • Whisk mochiko, baking powder, cocoa, sugar, brown sugar, instant coffee, and salt.
  • Add coconut milk, evaporated milk, melted butter, and eggs.
  • Mix dry and wet ingredients together, making sure there are no lumps of mochiko powder at the bottom of your bowl.
  • Pour into a 9x13" pan and bake for one hour.
  • Let cool and slice into squares. Leftovers can be kept sealed at room temperature.

Notes

*Regular cocoa powder for baking can be used instead of dutch process, but dutch process will give you a more intense flavor.
**This recipe was updated slightly in 2023 to be fudgier and chocolate-ier. I still love the original recipe, which was lighter and cakier. If you want the original recipe, increase mochiko to 2 1/2 cups and reduce cocoa powder to 3 tbsp.
***I sometimes like to use just 2 tsp of baking powder for a denser texture. A full tbsp is fluffier as shown in the photos.