Detailed Instructions: In this task, you have to identify the named entities (NER) which are the ingredients required given its directions. Named entities are the names of the items without their quantity.
Problem:With an electric mixer on medium-high speed, beat butter and cream cheese until fluffy, 2 to 3 minutes., Reduce speed to low., Add sugar, 1/2 cup at a time, and then vanilla, and mix until smooth and combined, scraping down sides of bowl as needed., If not using immediately, frosting can be refrigerated up to 3 days in an airtight container; before using, bring to room temperature, and beat on low speed until smooth again.
Solution:
unsalted butter, cream cheese, confectioners sugar, vanilla