Combine starter, evaporated milk & 2 cups of flour in large bowl. Cover and leave at room temperature overnight.
The next morning, beat together butter, sugar & egg. Blend into sourdough mixture. Combine the 1½ Cups of flour, soda, baking powder and salt. Mix with other mixture and turn onto a floured board. Knead until the surface is satiny and doesn't stick to the board (add flour if necessary.
Place Ball in the center of the board and roll out to a rectangle 8 inches x 16 inches. Brush surface with melted butter and sprinkle with a mixture of brown sugar & cinnamon (raisins if you wish). Roll up dough, starting on one of the long sides. Cut into 9 equal sections.
Dip bottom and top of roll in melted butter. Place in 9 inch square pan. Cover loosely & let rise about 1 hour or 'till doubled. Bake in hot oven 375 degrees for 30 to 35 minutes or till golden brown. Makes 9 large rolls.