best way to grow cherry tree from cherry pit?

Cherry pits need a cold spell before they'll sprout. Clean the pit, let it dry, then keep it in damp kitchen roll or sand in a bag in the fridge for around ten to twelve weeks. Plant it after that. Do several, plenty won't germinate. Expect a tree that's nothing like the cherry you ate, they don't grow true from seed, and it'll want full sun. Fun project, but if you want fruit, a grafted tree is the quicker route.