In a mixing bowl, combine 1 cup of glutinous rice flour, 1 cup of water, and ¼ cup of sugar. Stir the mixture vigorously until it is smooth and lump-free.

Transfer the smooth mochi mixture into a microwave-safe bowl or an air fryer-safe container. Cook at 350°F (175°C) for 5-6 minutes in an air fryer or microwave in one-minute intervals.

Once done cooking, allow the mochi to cool slightly for about 5 minutes.

Dust a clean surface generously with cornstarch to prevent sticking.

Transfer the dough onto your prepared surface, divide it into small portions, and flatten each piece into a round shape.

Place a fresh strawberry or a spoonful of sweetened red bean paste in the center of a flattened piece, wrap and seal tightly.

Shape the sealed mochi into a ball or desired form and dust with cornstarch to prevent sticking.

Store your freshly made chewy strawberry mochi in an airtight container at room temperature for up to 2 days, or refrigerate for up to a week.