Preheat your oven to 350°F and generously grease a 9x13 inch baking pan.
In a large bowl, whisk together the Mochiko, sugar, baking powder, and salt.
In a separate bowl, whisk the eggs, then add the coconut milk, evaporated milk, melted butter, honey, and vanilla.
Pour the wet ingredients into the dry ingredients and whisk until the batter is smooth.
Pour the batter into the prepared pan and tap it on the counter to remove air bubbles.
Bake for 55–60 minutes until the top is golden brown and the center is set.
Let the mochi cool completely in the pan on a wire rack before slicing into squares.