01 -
Heat the oven to 325°F and prepare a nine-inch springform pan on a rimmed tray.
02 -
Mix graham crumbs with melted butter. Press evenly over the lined base.
03 -
Beat softened cream cheese and sugar until smooth and scrape the bowl.
04 -
Add eggs individually on low speed. Mix in sour cream and vanilla.
05 -
Sift in cocoa and add food coloring appropriate to its label plus vinegar.
06 -
Mix only until evenly combined. Pour over the crust and smooth gently.
07 -
Bake about fifty to sixty minutes, continuing until edges are set and the center reaches 160°F with a slight unified wobble.
08 -
Cool gradually for a short period and refrigerate within two hours after baking. Chill at least four hours until fully cold before releasing the ring and slicing.