<human>: Which of the following solutions is better for the following goal:
make butter in a mason jar

OPTIONS:
- Fill a mason jar halfway full of heavy cream. Screw on the lid and shake for 5-7 minutes. Pour off the buttermilk and whats left is butter.
- Fill a mason jar halfway full of milk chocolate Screw on the lid and shake for 5-7 minutes. Pour off the buttermilk and whats left is butter.
<bot>: Fill a mason jar halfway full of heavy cream. Screw on the lid and shake for 5-7 minutes. Pour off the buttermilk and whats left is butter.