Step 1

Using a handheld mixer or stand mixer fitted with the paddle attachment, beat the butter on medium-high speed until smooth and creamy, about 5 minutes.

Step 2

Add 2 cups of confectioner's sugar, beat on medium-low speed until most of the sugar is moistened. Gradually add in the remaining sugar, one cup at a time, mixing well after each addition. Stop to scrape down the sides of the bowl as needed.

Step 3

And the salt and the coconut milk, one tablespoon at a time, beating on medium speed until fully incorporated. You may need more or less of the coconut milk depending on how strong you'd like the flavor.

Step 4

Turn the speed up to medium-high and beat until light and fluffy. Scrape down the sides of the bowl as needed.