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1
Pour boiling-hot water over dried coconut in a blender, then blend, scraping down sides as necessary, until combined well, about 30 seconds (use caution when blending hot liquids). Cool in blender until cool enough to handle.
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2
Line a large fine-mesh sieve with several layers of cheesecloth and set it over a bowl. Pour coconut mixture into lined sieve and squeeze out as much liquid as possible.
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3
Whisk together sweetened condensed milk and 1 cup coconut milk in a large bowl.
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4
Pour remaining coconut milk into a 1-cup glass measure and add enough whole milk to bring total to 1 cup, then transfer to a small saucepan.
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5
Sprinkle gelatin over milk mixture in saucepan and let stand 1 minute to soften, then heat over moderate heat, whisking occasionally, until gelatin is dissolved (do not let boil). Whisk into sweetened condensed milk mixture in large bowl until combined. Quick-chill by putting bowl in a larger bowl of ice and cold water and stirring occasionally until mixture is the consistency of raw egg whites, about 10 minutes. Remove bowl from ice bath.
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6
Beat cream with an electric mixer until it holds soft peaks, then fold cream into coconut mixture gently but thoroughly.
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7
Using cleaned beaters, beat egg whites with a pinch of salt until they hold soft peaks, then fold into coconut mixture gently but thoroughly. Chill, covered, until set, about 1 hour.