Creating Hawaiian Butter Mochi is straightforward if you follow these simple steps:

1. Preheat your oven to 350°F (175°C). Grease a 9×13-inch baking dish.

2. Mix Wet Ingredients: In a large bowl, combine coconut milk, whole milk, sugar, and eggs. Whisk until smooth and well blended.

3. Incorporate Dry Ingredients: In a separate bowl, sift together the sweet rice flour, baking powder, and salt.

4. Combine Mixtures: Gradually add the dry ingredients to the wet ingredients, stirring until no lumps remain.

5. Add Butter and Vanilla: Pour in the melted butter and vanilla extract. Mix until well incorporated.

6. Pour Batter: Transfer the batter into the prepared baking dish, smoothing the top with a spatula.

7. Bake: Place in the preheated oven and bake for 45 minutes, or until the top is golden brown.

8. Cool: Remove from the oven and let it cool in the pan for about 20 minutes.

9. Slice and Serve: Once cooled, slice the mochi into squares. Enjoy warm or at room temperature.

By following these steps, you’ll create an incredibly delicious dessert that captures the spirit of the islands.