Method
Prepare the Spätzle Dough.
a. Combine 1 1/2 batches of Homemade German Spätzle dough in a mixing bowl.
b. Mix until the dough is smooth and elastic, then set it aside.
Boil the Spätzle.
a. Bring a large pot of salted water to a boil.
b. Using a Spätzle press or a colander with large holes, press the dough into the boiling water.
c. Cook until the Spätzle floats to the surface, then remove it with a slotted spoon.
d. Place the cooked Spätzle in a large bowl.
Prepare the Onion Mixture.
a. In a separate skillet, melt 8 tablespoons of butter over medium heat.
b. Add 4 chopped onions to the skillet.
c. Season with 1 teaspoon of salt and 1 teaspoon of sugar.
d. Sauté the onions until they are soft and golden brown.
Layer the Ingredients.
a. Preheat your oven to 350°F (175°C).
b. In a large baking dish, start with a layer of cooked Spätzle.
c. Add a layer of the sautéed onions.
d. Sprinkle with a portion of the shredded Emmentaler or Jarlsberg cheese.
e. Repeat the layers until all the ingredients are used, finishing with a layer of cheese on top.
Bake the Käsespätzle.
a. Place the baking dish in the preheated oven.
b. Bake for approximately 20-25 minutes, or until the cheese is melted and bubbly.
c. If desired, you can broil briefly to brown the cheese on top.