Wash and cut leaves off strawberries. Make sure strawberries are dried off.
Divide red bean paste into 9 chunks. Roll each chunk into a ball and flatten with your palm.
Wrap each strawberry in red bean paste, forming a ball. Place red bean and strawberry balls in fridge while preparing the mochi.
In a heat proof bowl, whisk together shiratamako and sugar.
Add water, stirring with a silicone spatula until combined into a dough.
Cover tightly with either a microwave lid or plastic wrap, then microwave for 2 and a half minutes, stirring once about halfway through. You'll know the mochi is cooked when it turns from opaque white to somewhat translucent all the way through.
Scoop cooked mochi onto a surface dusted with katakuriko. Divide into 9 equal pieces.
Working with one piece at a time, roll out into a flat, circular shape about 3 inches in diameter. Keep the unused pieces covered with a towel or plastic wrap to prevent them from drying out.
Place a red bean/strawberry ball in the middle of your flattened mochi. Wrap the strawberry with the mochi, pinching the ends together to form a ball. Dust your finished daifuku with katakuriko as necessary to keep from sticking.
Continue rolling and wrapping your daifuku until you've used all 9 pieces. Daifuku are best eaten the day they are made.