Ok, so here's what you'll need.
  1. 1/2 Cup heavy whipping cream
  2. A Jar
  3. Carrot slices (optional if you want the butter to be yellow)

Step 1:
Pour the heavy whipping cream into your jar and secure with a tight fitting lid. You can add the carrot slices if you want the butter to be yellow, otherwise it will be more white.

Step 2:
Shake the jar for 20 minutes (it's gonna take some effort!) Once the butter has solidified, pour off the buttermilk and store.

There you have it! old fashioned butter