1. Prepare the Strawberry Cheesecake Filling

• Mix the Filling: In a medium bowl, combine the softened cream cheese, powdered sugar, sour cream, pureed strawberries, and vanilla extract. Mix until smooth and well incorporated.
• Adjust the Texture: If you want a smoother filling, add heavy cream a little at a time until you reach your desired consistency. The filling should be thick enough to hold its shape when you form the mochi.

2. Form the Filling into Balls

• Shape the Filling: Use a spoon to scoop small amounts of the cheesecake mixture and roll them into balls about 1 inch in size. Place them on a parchment-lined tray or plate. Freeze them for at least 30 minutes to firm up. This makes it easier to wrap the mochi around them later.

3. Make the Mochi Dough

• Combine Dry Ingredients: In a medium bowl, whisk together the sweet rice flour and sugar.
• Add Water: Gradually add water, stirring constantly to avoid lumps. Continue until the mixture is smooth.
• Cook the Dough: Pour the mixture into a microwave-safe bowl. Microwave it on high for 1 minute. Stir well, then microwave again for 1 minute. Stir again. Repeat this process two or three more times until the dough becomes thick and translucent.
• Cool Slightly: Let the dough cool for a few minutes until it’s warm but not too hot to handle.

4. Shape the Mochi

• Dust with Starch: Lightly dust your work surface and hands with cornstarch or potato starch to prevent the mochi from sticking.
• Form the Mochi: Scoop a small amount of mochi dough (about 1-2 tablespoons) and flatten it into a disc. Place one of the frozen cheesecake filling balls in the center of the disc.
• Seal the Mochi: Carefully pinch the edges of the mochi dough together to seal the filling inside. Gently roll it into a ball, making sure the edges are completely sealed. Repeat with the remaining dough and filling.

5. Chill and Serve

• Chill the Mochi: Once all the mochi are formed, place them back on a parchment-lined tray and refrigerate for at least 30 minutes to firm them up further. You can also store them in the freezer if you prefer a colder, firmer texture.
• Serve: Once chilled, serve the mochi as a fun, bite-sized dessert! Enjoy them right away or store them in an airtight container for up to a few days.