Finish the following sentence with the best choice: How do you thicken heavy whipping cream?

Choices:
- Pour 2 cups of heavy whipping cream into a measuring cup, then pour  the heavy whipping cream into a glass jar, place a fitted lid on the jar, twist the lid tightly, then shake the glass jar very slowly for ten minutes.
- Pour 2 cups of heavy whipping cream into a measuring cup, then pour  the heavy whipping cream into a glass jar, place a fitted lid on the jar, twist the lid tightly, then shake the glass jar vigorously for ten minutes.

Answer:
Pour 2 cups of heavy whipping cream into a measuring cup, then pour  the heavy whipping cream into a glass jar, place a fitted lid on the jar, twist the lid tightly, then shake the glass jar vigorously for ten minutes.