Peel and grate potatoes; drain on paper towels. Squeeze dry and set aside. In a large bowl, beat cream cheese and flour until smooth. Stir in the egg, cream, onion salt and cayenne until blended. Stir in potatoes and cheese. In an electric skillet, heat oil to 375°. Drop batter by 1/3 cupfuls into skillet; press lightly to flatten. Fry for about 5 minutes on each side or until the potatoes are tender and golden brown. Drain on paper towels. Arrange patties in a single layer on a baking sheet. Freeze overnight or until thoroughly frozen. Place in a resealable plastic bag. May be frozen for up to 2 months. To use frozen potato pancakes: Place frozen pancakes on a lightly greased baking sheet. Bake at 400° for 10-12 minutes or until heated through.