01 - Blend strawberries, coconut milk, maple syrup, vanilla extract, and salt until completely smooth. Transfer mixture to an ice cream maker and churn according to manufacturer instructions, or pour into a shallow freezer-safe dish and freeze for 2-3 hours, stirring every 30 minutes until creamy and scoopable.
02 - Scoop the churned ice cream into 8 equal portions, approximately 1 1/2 tablespoons each. Roll quickly into smooth balls and place on a parchment-lined baking sheet. Freeze until completely firm, at least 2 hours.
03 - In a microwave-safe bowl, whisk together sweet rice flour, granulated sugar, water, and beetroot powder if using, until no lumps remain. Cover loosely with plastic wrap.
04 - Microwave on high power for 1 minute. Stir thoroughly, then microwave for another 1 minute. Stir again and continue microwaving in 30-second intervals until dough becomes thick and translucent, approximately 2.5-3 minutes total. Let cool for 10 minutes until safe to handle.
05 - Generously dust a clean work surface with potato starch or cornstarch. Turn cooled dough onto surface and dust top. Roll dough to approximately 1/4-inch thickness. Using a 3.5-inch round cutter or drinking glass, cut out 8 circles. Keep circles separated with parchment paper to prevent sticking.
06 - Working quickly to prevent melting, place one frozen ice cream ball in the center of each mochi circle. Gently pull edges of dough up and over ice cream, pinching tightly to seal completely. Place each assembled mochi seam-side down in a cupcake liner. Freeze finished mochi ice cream for at least 1 hour before serving.