If you follow me on FB and Instagram then you may have guessed John and I are planning a Potter party soon. I mean, if the Treacle Tart experiments didn't give it away, then this video of our "Pensive Punch" certainly did: Experimenting with drinkable potions tonight for a Potter-themed Pensieve Punch. 🍹⚡️💙 #HarryPotterDrinks #pensieve #potions #shimmerydrink #funwithdryice A video posted by Jen Yates (@epbot) on Oct 13, 2016 at 4:27pm PDT Watch 'til the end. And yes, the punch is safe to…