Chayotes María

Ingredients

 * 6 medium chayotes, washed
 * 1/3 cup flour
 * 3 cups skim milk
 * 1 cup evaporates skim milk
 * ½ cup low fat sour cream
 * 1½ tablespoons chopped fresh parsley
 * 3 scallions, minced
 * pepper to taste
 * small amount of salt (optional)

Directions

 * 1) In a large saucepan, bring 4 quarts of salted water to a boil. Add the chayotes, cover, and cook until they are tender when pierced with a skewer, about 30 minutes.
 * 2) While the chayotes are cooking, prepare the sauce. In a small bowl, whisk together the flour and ½-cup of skim milk until smooth. In a large non-aluminum saucepan, stir together the remaining skim milk and the evaporated skim milk. Bring to a simmer over medium heat. Very gradually whisk in the flour mixture. Stir until the sauce boils and thickens. Reduce the heat to very low and cook for 2 minutes, stirring occasionally. Stir in the sour cream, parsley, and scallions and season to taste with salt (optional) and plenty of pepper.
 * 3) Drain the chayotes and cut into ¼-inch thick slices. Put the sliced chayotes in a serving bowl, pour the sauce over, and serve immediately.