PREHEAT AND PREP: Preheat the oven to 350°F (175°C). Grease a 9x13-inch baking pan or line it with parchment paper for easy removal.
MIX THE DRY INGREDIENTS: In a large mixing bowl, whisk together the sweet rice flour, granulated sugar, baking powder, and salt until well combined.
ADD THE WET INGREDIENTS: Add the melted butter, coconut milk, whole milk, eggs, lemon zest, lemon juice, and vanilla extract to the dry ingredients. Whisk until the batter is completely smooth. The batter will be thin—that is expected.
BAKE: Pour the batter into the prepared pan and smooth the top. Bake for 50–60 minutes, or until the center is set and a toothpick inserted comes out mostly clean. The surface should be slightly golden and may have small cracks.
COOL AND GLAZE: Allow the mochi to cool in the pan for at least 30 minutes. While it cools, whisk the powdered sugar with the lemon juice, adding milk a little at a time if a thinner consistency is preferred. Pour the glaze over the cooled mochi and spread evenly with a spatula.
TOP WITH BERRY CRUNCH: While the glaze is still soft, sprinkle the crushed freeze-dried strawberries generously over the top. Let it rest for 15–20 minutes to allow the glaze to set and absorb the berry color slightly.
SLICE AND SERVE: Once fully set, cut into squares using a sharp knife, cleaning the blade between cuts for clean edges. Serve at room temperature.