In a small bowl combine the butter, parsley, chili powder, garlic salt, and cumin; set aside.
To pot of boiling water add 1 tablespoons granulated sugar, and 1 tablespoons lemon juice. Add corn. Boil for 3 to 5 minutes, uncovered. Remove from heat, cover and let stand for 15 minutes. Remove from hot water, spread ears of corn with seasoned butter.