In a small bowl, combine the sugar and cinnamon. In another bowl, combine the butter and vanilla. Separate dough into 10 biscuits; press each into a 3-in. circle. Dip cream cheese cubes in butter and then in cinnamon-sugar. Place one in the center of each biscuit. Fold dough over cube; seal and shape into balls.
Dip balls in butter, then in cinnamon-sugar. Place seam side down in greased muffin cups. Bake at 375° for 14-18 minutes or until golden brown. Serve warm.