1) The document provides instructions for making ice cream using a jar-in-jar method. 2) The ingredients needed are fresh whipping cream, sugar, vanilla essence, ice cubes, and rock salt. 3) The whipping cream, sugar, and vanilla essence are mixed in a smaller jar which is then placed inside a larger jar filled with ice and rock salt. The jars are rolled in a towel for 30 minutes to churn the ice cream.