Preheat oven to 350. Grease a 9 x 13 pan

Mix chicken and 1 cup cheese. Roll up in tortillas and place in pan.

In a sauce pan, melt butter, stir in flour and cook 1 minute. Add broth and whisk until smooth. Heat over medium heat until thick and bubbly.

Stir in sour cream. Do not bring to a boil, you do not want to cuddle the sour cream.

Pour over enchiladas and top with remaining cheese.

Bake 22 minutes and then under high broil for 3 minutes to Brown the cheese.