Grease or line two cupcake pans. Preheat oven to 350°F In mixer, combine flour, sugar and salt.
Melt chocolate with butter, Kahlua and water Add melted chocolate mixture to flour mixture and mix lightly. Add sour cream, vanilla, baking soda and eggs and mix well for 2 minutes.
Pour batter into pans and press a Kahlua candy into each cake. Be careful that the candy does not touch the bottom of the pan. Cover the chocolate with additional batter, if desired. Bake for 20-30 minutes or until the cakes bounces back when pressed gently. Cool on rack 10 minutes and unmold cakes to cake rack to cool completely before frosting.