Instructions: Preheat oven to 350-degrees F.

In a large bowl, beat the eggs well. In a separate bowl, stir the flour, baking powder, and salt together. Sift the flour over the eggs and mix well. Fold in the cheeses, butter, and chiles.

Pour the mixture into a greased 9- by 13-inch baking dish. Bake for 35 to 45 minutes, or until puffy and set.

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