Mix all the filling ingredients together in a small bowl.
Make the mochi in a large bowl, by mixing the mochiko, powdered sugar, water, and salt. Run all the dry ingredients through a strainer to get rid of any clumps.
Microwave for 3 minutes.
Mix again and microwave for 1 minute 30 seconds.
Spread corn starch on your work area and on your hands, so the mochi doesn't stick.
Roll golf sized balls.
Make a pocket, add the filling, and seal.
