"Look for steam and a slight bit of juice coming out of the vents before removing the pie from the oven. Get your ear right down almost to the top of the pie and listen for the sizzle-whump, which some call the pie's heartbeat."

~ ~ ~ from the cookbook, "Art of the Pie" by Kate McDermott

The thought of a pie having a heartbeat, a "sizzle-whump", just makes me so happy.