Bring 6 cups of water to a boil. Add the sugar, salt and stir to dissolve.
Add the corn and bring to a boil again, then remove from heat immediately.
Drain and remove half to a blender and transfer remaining 3 cups corn back into pan. Add 2 tablespoons of butter and black pepper, stirring to mix and melt.
Puree the other 3 cups of corn with heavy cream in blender. Pour blended corn into pot with corn and stir to mix. Season to taste. Serve warm.