MELT 2 tablespoons butter in large skillet over medium-high heat. Add 5 bananas; cook until golden brown on all sides. Place on large serving platter or casserole dish; keep warm. Repeat with remaining butter and bananas.
COMBINE evaporated milk, sugar, cornstarch and vanilla extract in medium saucepan. Bring to a boil over medium heat, stirring constantly, until mixture thickens. Remove from heat.
POUR sauce over bananas. Sprinkle with cinnamon. Serve warm.