bowl of a heavy -
duty electric stand mixer.
Beat butter at medium speed with a heavy -
duty electric stand mixer until creamy; gradually add sugar, beating until light and fluffy.
Beat butter at medium speed with a heavy -
duty electric stand mixer until creamy.
Beat butter and sugars at medium speed with a heavy -
duty electric stand mixer until creamy.
Beat together first 5 ingredients at low speed with a heavy -
duty electric stand mixer until blended.
Beat cream cheese at medium speed with a heavy -
duty electric stand mixer until smooth; gradually add condensed milk, beating until blended after each addition.