Ingredients
- 4 tablespoons (1/2 stick) butter
- 1/2 teaspoon salt
- 11/2 cups (about 7 ounces) all-purpose flour
- 3 eggs
- 1 cup freshly grated Emmenthal, Gruyère, Cantal or Cheddar cheese
- 1 cup freshly grated Parmesan or other hard cheese.
Directions
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Lightly grease two baking sheets and preheat oven to 425 degrees.
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In a medium saucepan, combine one cup water, butter and salt. Turn heat to medium-high and bring to a boil. Cook, stirring, until butter melts. Add flour all at once and cook, stirring constantly, until dough holds together in a ball, 5 minutes or less. Dough will get stiffer as you stir; keep stirring until dough is smooth. Transfer batter to a large mixing bowl or the workbowl of a standing mixer.
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Add eggs one at a time, beating hard after each addition (this is a little bit of work; a hand mixer will probably not be powerful enough). Stop beating when mixture is glossy. Stir in the cheeses.
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Drop teaspoonfuls onto baking sheet and bake until puffed and lightly browned, 10 to 15 minutes. Serve hot, warm or at room temperature.