Grease 9 x 13 dish or pan. Beat eggs. Add vanilla, sugar and milk. Beat with a whip. Break bread. Pour mixture over bread. Push down to soak. Sprinkle with cinnamon and dot with butter while baking. Mix 1 cup sugar and 2 teaspoons corn starch. Add 1 cup boiling water. Slow cook until thick. Remove from heat and add 1 stick butter and 2 tablespoons vanilla. Stil until butter melts. Cool. Pour sauce over pudding.