Given the task definition and input, reply with output. In this task, you will be presented with the directions of a recipe separated by "," and have to fill in the "___" which is a step that is missing from the recipe.

Cook whipping cream in a heavy saucepan over medium heat until hot; reduce heat, and keep warm.,Cook sugar in a heavy saucepan over medium heat, stirring constantly, 4 to 5 minutes until sugar melts and turns a deep-golden color.,______,Note: Sauce may be stored in refrigerator up to 2 days. (It will be very thick.),To serve, cook over low heat, stirring often, until pouring consistency.
Add caramelized sugar to warm whipping cream in a slow, steady stream, whisking constantly. Cook over medium heat, whisking constantly, until smooth. Remove from heat; cool. (Mixture will thicken as it cools.)