We didn't exactly churn it, but I wouldn't let the boys use the standing mixer either. The boys each got a jar of cream to shake into butter. I didn't let the cream get to room temp first, so it took longer than it should've, but once it started hardening it went quickly.

The liquid leftover is buttermilk. I think we could've made more butter and had less buttermilk, but the boys were getting impatient to see the fruits of their labor. Isaac has now requested buttermilk biscuits, anyone have a good recipe?