Homemade Butter Recipe (and Provo Pioneer Day Extravaganza)

For the last two years I've taken my kids to the Pioneer Extravaganza. It's a fun city-sponsored event that celebrates the pioneers entering Utah on July 24th. It's a fun family event with great interactive activities for kids, including riding ponies. They have tons of games, crafts and hands-on activities including making butter. Here's the recipe they gave out:

MAKE YOUR OWN BUTTER RECIPE
1 jar with lid
heavy whipping cream
pinch of salt
yellow food coloring (if desired)

fill your jar 1/3 of the way with heavy whipping cream. Add salt and food coloring. Tighten lid and shake jar for 10 minutes or until butter has formed. Remove butter from jar. Squeeze out the remaining buttermilk and enjoy!