People won't realize that you've made this with mochi. How about a light crunch for Valentine's? You can make this in 30 minutes.
I came up with this while thinking if I could make chocolate crunch without using rice puffs.
Let cool and stiffen after mixing the chocolate around well. If you're planning on giving them away as gifts, you might want to shape them into truffle-sized pieces.
Enjoy Japanese food around the world.