If you are using fresh corn, take the kernels of corn off of the cob. I like putting the cob on a "stand" inside a bowl to catch all of the delicious "milk" that comes from the corn.
In a large skillet over medium heat, add the butter and the corn. Saute until the corn is warmed through.
To the skillet, add the cream, salt, sugar, pepper, cayenne, and nutmeg. Mix to combine and bring to a low simmer.
In a small bowl make the slurry by combining the gluten free flour and the milk. Whisk until well combined.
Stir the slurry into the corn mixture and continue to cook over medium heat until thickened, about 5 minutes.
Remove from heat and stir in the parmesan cheese until melted. Serve.
Notes
I am a huge fan of using fresh corn but frozen corn works just as well.Feel free to sub out the dairy for any plant-based dairy. I make this dairy-free all the time. If you do not want this to be gluten free, use regular all-purpose flour. This can be made in advance and kept in an airtight container in the refrigerator for up to three days.