Preheat oven to 375. In large mixer bowl, beat sweetened condensed milk and peanut butter until smooth. Add biscuit mix and vanilla; mix well. Shape in to 1-inch balls. Roll in sugar. Place 2 inches apart on ungreased baking sheet. Flatten with fork. Bake 6 to 8 minutes or until LIGHTLY browned (do not overbake). Cool. Store tightly covered at room temperature. Makes about 5 dozen. I make the variation they call Peanut Blossoms. Shape as above; DO NOT FLATTEN. Bake as above. Press milk chocolate candy kiss (unwrapped) in center of each ball IMMEDIATELY after baking. Be sure to have the kisses unwrapped by the time the cookies are done baking. Press the kiss well in to the cookie so it stays better. The cookie will spread out as you press, leaving cracks and gaps along the outside edge. From: Gail Oxton