Käsespätzle is a beloved Austrian comfort food: soft, freshly made egg dumplings are layered with melted Alpine cheese and topped with golden onions. This vegetarian version is hearty enough for a main course, and the recipe uses a practical mix of cheeses while leaving room for the regional and family variations that make the dish its own.
Ingredients
- 2 cups (250 g) all-purpose flour
- 3 large eggs (about 150 g without shells)
- 1/3 cup (80 ml) whole milk
- 1/4 cup (60 ml) water, plus up to 2 tablespoons (30 ml) more if needed
- 1 teaspoon (6 g) fine salt, for the dough
- 1/8 teaspoon (0.25 g) freshly grated nutmeg
- 3 quarts (2.8 L) water, for boiling the dumplings
- 1 tablespoon (15 g) salt, for the boiling water
- 2 medium yellow onions (about 300 g), thinly sliced
- 1 tablespoon (15 ml) neutral cooking oil
- 2 tablespoons (28 g) unsalted butter, for the onions
- 2 cups (200 g) grated Austrian Bergkäse or another alpine-style cheese
- 1 cup (100 g) grated Emmental cheese
- 1 tablespoon (14 g) unsalted butter, for the baking dish
- 1/4 teaspoon (0.5 g) freshly ground black pepper
- 2 tablespoons (6 g) chopped fresh chives, to finish
Instructions
- Prepare the ingredients and oven. Heat the oven to 375°F (190°C). Butter a 9-by-13-inch (23-by-33-cm) baking dish. Slice the onions thinly, grate the cheeses, and set them aside separately. If you have a spaetzle maker, set it over a large bowl; a sturdy colander with roughly 1/4-inch (6-mm) holes also works. Keep a heatproof spoon or scraper nearby for pushing the batter through.
- Mix the spaetzle batter. Whisk the flour, 1 teaspoon salt, and nutmeg in a mixing bowl. In a second bowl, beat the eggs with the milk and 1/4 cup water. Pour the liquid into the flour and stir firmly until a thick, elastic batter forms. It should be sticky and should fall slowly from a spoon rather than pour like pancake batter. If it is too stiff to press through the holes, stir in extra water a tablespoon at a time. Avoid adding a large splash all at once; a loose batter can make the dumplings thin and soft.
- Cook the onions. Warm the oil and 2 tablespoons butter in a wide skillet over medium-low heat. Add the sliced onions and cook for 15 to 18 minutes, stirring often, until soft, deeply golden, and sweet-smelling. Turn the heat down if the edges start to darken before the centers soften. Transfer the onions to a plate. Keep the skillet nearby if you want to warm the finished dumplings in it, or proceed with the baking dish.
- Boil the dumplings in batches. Bring the 3 quarts water and 1 tablespoon salt to a steady boil in a large pot. Working in two or three batches, push the batter through the spaetzle maker or colander into the water. Stir once gently so the pieces do not stick to the bottom. When they rise to the surface, let them cook for about 1 minute more, then lift them out with a slotted spoon and drain well. Each batch usually takes 2 to 3 minutes, depending on the size of the dumplings. Reserve 1/4 cup (60 ml) of the cooking water before draining the pot.
- Layer the cheese and dumplings. Put half the hot spaetzle in the buttered dish and scatter over half of both cheeses. Add the remaining spaetzle and cheese, then drizzle the reserved cooking water evenly over the top. The water helps the cheese melt into the dumplings instead of leaving a dry layer. Sprinkle with black pepper. The cheese is salty, so wait until serving to decide whether the finished dish needs extra salt.
- Bake until hot and melted. Bake uncovered for 12 to 15 minutes, until the cheese has melted and the center is hot. Because the dumpling batter contains eggs, check the center with an instant-read food thermometer and confirm it reaches 160°F (71°C), the USDA FSIS safe minimum temperature for egg dishes. If the cheese is melted but the center has not reached that temperature, return the dish to the oven for a few minutes and check again.
- Finish and serve. Spoon the onions over the top and scatter on the chives. Let the dish stand for 2 minutes so the cheese settles slightly, then serve while the dumplings are soft and the top is still glossy. If the onions have cooled, warm them briefly in the skillet before adding them.
Tips
- Use the right batter texture. Spaetzle batter is meant to be sticky and stretchy, not kneadable like bread dough and not runny like crepe batter. Flour brands and egg sizes vary, so use the optional extra water gradually. A test dumpling is useful: cook a small spoonful first. If it holds together and turns tender, the batter is ready; if it breaks apart, stir in a tablespoon of flour and test again.
- Choose cheese that melts well. Bergkäse, meaning mountain cheese, gives the dish a savory, nutty character, but it can be difficult to find outside Central Europe. Aged Gruyère is a practical substitute, while Emmental contributes a mild, stretchy melt. If you use only a very sharp hard cheese, the result can taste salty and melt less smoothly, so combine it with a milder melting cheese.
- Keep the dumplings from clumping. Drain each batch well and move it straight into the baking dish rather than letting it sit in a colander for a long time. A little reserved cooking water loosens the layers. Do not rinse the spaetzle after boiling; rinsing removes surface starch that helps the cheese cling.
- Brown onions patiently. Medium-low heat gives the onions time to soften and turn golden without scorching. If the pan becomes dry, add a teaspoon of water rather than turning the heat high. Burnt onion tips taste bitter and can overpower the mellow cheese.
Serving Suggestions
Serve Käsespätzle hot as a filling main dish, with a crisp green salad dressed in a light vinaigrette to balance the rich cheese. A simple cucumber salad, shredded cabbage, or leafy salad with sliced radishes all bring freshness and crunch. If you want a more substantial Austrian-style table, add a bowl of clear vegetable soup beforehand; keep the soup light so the meal does not become too heavy.
The onions and chives provide plenty of flavor, so additional toppings are optional. A small spoonful of sour cream can be served at the table, although it is not needed for the recipe. For a little acidity, offer pickled vegetables or a few cornichons alongside. Serve the casserole directly from its dish, and give each person a generous scoop that includes both the soft center and the cheesy edges.
Variations
There is no single fixed version of Käsespätzle across Austria and neighboring Alpine regions. Cheese choices, the amount of onion, and whether the dumplings are layered in a dish or combined in a pan vary by place and household. This recipe uses an oven finish because it melts the cheese evenly and makes a convenient four-serving meal; you can instead toss the hot drained dumplings with cheese in a wide skillet over low heat, adding a splash of cooking water as needed.
For a stronger flavor, replace up to half of the Emmental with additional Bergkäse or aged Gruyère. For a milder, stringier result, use more Emmental. If you cannot find either, a combination of Swiss cheese and a little sharp white cheddar is workable, though it will taste less distinctly Alpine. Use a vegetarian cheese made with non-animal rennet if that matters for your diet; some traditional-style cheeses use animal rennet, so check the label.
You can add sautéed mushrooms or wilted spinach between the layers for a vegetable variation. Cook mushrooms until their released liquid has evaporated, or squeeze excess moisture from cooked spinach before layering, otherwise the casserole may turn watery. A pinch of smoked paprika or chopped parsley changes the flavor profile but can be pleasant. Keep additions moderate so they do not hide the cheese and fresh dumplings that define the dish.
Storage and Reheating
Cool leftovers promptly and refrigerate them within 2 hours of cooking in a covered, shallow container. They keep for 3 to 4 days in the refrigerator. The dumplings will firm up as they chill, and the cheese may set, but the texture softens again when reheated. For best results, store any extra onions separately if you expect to have leftovers; they stay more distinct when added after reheating.
Reheat an individual portion in a covered microwave-safe dish, stirring once if practical, until steaming hot throughout. For a larger amount, cover the baking dish with foil and warm it in a 350°F (175°C) oven, adding a tablespoon or two of water or milk if it looks dry. Reheated leftovers should reach 165°F (74°C), measured in the center with a food thermometer. Avoid repeatedly warming and cooling the same portion. Freezing is possible for up to 2 months, though the dumplings may become softer and the cheese less smooth after thawing; thaw overnight in the refrigerator and reheat to 165°F (74°C).
Frequently Asked Questions
Can I make spaetzle without a spaetzle maker?
Yes. Press the batter through a colander with holes about 1/4 inch (6 mm) wide, using a flexible scraper or the back of a spoon. A potato ricer with large holes can also work. Avoid a fine-mesh strainer, which will not let the thick batter pass easily. If the batter sticks, dip the scraper in water between batches.
How do I know when the spaetzle batter is the right consistency?
It should be thick, sticky, and elastic, and it should stretch or fall in heavy ribbons from a spoon. It should pass through the tool with steady pressure rather than flow on its own. Since flour absorbs liquid differently, begin with the listed amount and add water only a tablespoon at a time. Cooking one test dumpling is more reliable than judging the bowl by appearance alone.
What cheese can I use instead of Bergkäse?
Aged Gruyère is the closest easy-to-find substitute for its nutty, savory flavor. Emmental melts smoothly and softens a stronger cheese, while Swiss cheese is another accessible option. A mix usually gives the best balance. Check cheese labels if you need a vegetarian product, because the rennet used to make some cheeses is not vegetarian.
Can I prepare Käsespätzle ahead?
You can grate the cheese and slice the onions a day ahead, keeping each covered in the refrigerator. The batter is best mixed shortly before cooking because it can thicken as it stands. You can also boil the spaetzle earlier on the same day, drain it well, toss it with a small amount of butter, and refrigerate it; assemble and bake it within 24 hours, allowing a few extra minutes in the oven if it goes in cold.
Why did my finished dish turn dry or rubbery?
Dryness often comes from overbaking, poorly drained layers, or using cheese that does not melt smoothly. Add the reserved cooking water and check the center as directed rather than leaving the casserole in the oven well beyond the time needed to reach 160°F (71°C). Rubberiness can also result from batter that is too stiff or dumplings that were boiled too long; keep the batter elastic and remove the dumplings soon after they float and finish their brief additional boil.
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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes
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