In a high-powered blender, blend the drained cashews and coconut milk until very smooth.
Add the maple syrup, vanilla, and salt. Blend again until fully incorporated.
Pour the mixture into a freezer-safe container and place in the freezer for 8 hours or overnight.
Remove from freezer and blend again until smooth and creamy. You may need to let it soften on the counter for 5-10 minutes before blending if too firm.
Return to freezer until set, about 2 more hours. Scoop and enjoy!
Store leftover ice cream in a sealed container in the freezer.