Pepper schnitzel au gratin in the Thermomix® almost always go wrong because of the cheese. Anyone who puts it in the oven from the start ends up with a greasy puddle in the baking dish after 45 minutes instead of a golden crust. We have been making this recipe for years and have worked out a sequence where the sauce comes together in the mixing bowl at the same time as the schnitzel cook in the oven. We add the cheese only at the very end and get the colour through five minutes under the grill.
This dish tends to appear on our table when we need something quick that still feels like a proper Sunday dinner. The combination of tender schnitzel, pepper and cream sauce, and a bubbling cheese topping sits exactly between comfort food and clever fridge-clearing, because mushrooms, Mozzarella, and soured cream are almost always to hand. For four people, we allow one hour total, with around 15 minutes of active work.
Pepper Schnitzel Gratin with the Thermomix®
Ingredients 0 / 15 ✓
- 100 g Gouda
- 2 garlic cloves
- 2 onions
- 2 tbsp olive oil
- 2 peppers e.g. red and green
- 100 g mushrooms
- 150 g Mozzarella
- 200 g soured cream
- 200 g double cream
- 2 tsp cornflour
- 1 tsp salt
- 1 tsp vegetable stock powder
- 4 pork schnitzel
- 1/2 tsp hot smoked paprika
- 1/2 tsp pepper
Instructions 0 / 9
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1
Chop the cheese.
Add the Gouda in pieces to the mixing bowl, chop for 5 sec / speed 7 and set aside.
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2
Chop the garlic.
Peel the garlic, add to the mixing bowl and chop for 3 sec / speed 8.
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3
Chop the onions.
Peel the onions, halve them, add to the bowl, chop for 5 sec / speed 5 and scrape down with the spatula.
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4
Steam the vegetables.
Add the olive oil and steam for 3 min / Varoma / speed 1.
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5
Prepare the peppers and Mozzarella.
Meanwhile, wash the peppers, deseed and cut into pieces. Clean the mushrooms and slice them. Slice the Mozzarella.
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6
Chop the peppers.
Add the peppers, chop for 4 sec / speed 4 and scrape down with the spatula. Preheat the oven to 180°C fan.
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7
Mix the sauce.
Add the soured cream, double cream, cornflour, 1/2 tsp salt and vegetable stock powder, mix for 5 sec / reverse direction / speed 3 and heat for 4 min / 100°C / reverse direction / speed 1.
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8
Season the meat.
Meanwhile, wash the schnitzel, pat dry, halve and season with salt, paprika and pepper. Lay them side by side in a baking dish and scatter the mushrooms over the top.
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9
Bake the schnitzel au gratin.
Add the Gouda back to the mixing bowl, mix for 8 sec / reverse direction / speed 3 and pour over the schnitzel. Lay the Mozzarella slices on top and bake on the middle shelf of the oven for approx. 45 minutes.
Tip: You can serve this with pasta, Spaetzle, or simply some white bread.
Video
Nutrition per serving
Why the sauce belongs in the mixing bowl, not the frying pan
Making a pepper and cream sauce the classic way in a pan costs us attention, a pot, and time. In the Thermomix® it all happens in one go: garlic, onions, and peppers are chopped one after another in the same mixing bowl, before we add the olive oil, soured cream, double cream, cornflour, and stock powder and heat everything for 4 min / 100°C / reverse direction / speed 1. The reverse direction matters here: the peppers stay in pieces rather than being blended to a puree, and the cornflour distributes evenly without forming lumps.
The ratio of 200 g soured cream to 200 g double cream is fixed for us. More double cream makes the sauce too sweet and it loses the slight acidity that works well with the cheese. More soured cream tips it towards something heavy and thick on the plate. The two teaspoons of cornflour are just enough so the liquid does not work its way out of the dish during the 45 minutes of baking, but instead gives the schnitzel a velvety coating.
Why the cheese goes on the schnitzel only at the end
This is the point where most baked schnitzel recipes fall apart. Anyone who puts the Gouda and Mozzarella in the oven from the start is cooking them for 45 minutes at 180°C fan. Cheese cannot take that: the protein and fat separate, the fat runs out, and what is left on top is a tough, almost leathery layer. Instead of a golden crust, you get a greasy puddle.
We do it differently. The schnitzel cook for 45 minutes in the cream sauce with the mushrooms. The dish comes out of the oven, the Gouda and Mozzarella mix is scattered over the top, and then the schnitzel go back under the grill for five minutes. That is all the time the cheese needs to melt and pick up colour without splitting. In the mixing bowl we chop the Gouda for exactly this step at 5 sec / speed 7. The grater can stay in the drawer. The Mozzarella goes on by hand in slices, because it clumps if chopped.
The right order in the mixing bowl, without washing it in between
To use the mixing bowl only once, we follow a fixed sequence. First chop the Gouda and set it aside. Then garlic (3 sec / speed 8), onions in (5 sec / speed 5), scrape down with the spatula. Add olive oil, steam for 3 min / Varoma / speed 1. Meanwhile cut the peppers and mushrooms, slice the Mozzarella. The peppers go into the bowl with the sweated mixture, 4 sec / speed 4 is enough because chunky pepper pieces give more to the sauce than a smooth puree. Only then add the soured cream, double cream, cornflour, half a teaspoon of salt, and vegetable stock powder, mix briefly for 5 sec / reverse direction / speed 3 and heat for 4 min / 100°C / reverse direction / speed 1.
We halve the two large pork schnitzel so that four pieces become eight. They fit side by side in a 28 cm baking dish and each piece gets an even coating of sauce. Salt, hot smoked paprika, and pepper go directly onto the meat, the sauce with the mushrooms over the top, and the dish goes into the oven.
What regularly goes wrong for us
The schnitzel is tough after 45 minutes
Pork schnitzel are thin and pork dries out quickly under prolonged heat. When our schnitzel look stringy when cut, it has twice been because we did not halve them and the sauce did not cover them completely. Our fix: halve the schnitzel, let them overlap slightly in the baking dish and add enough sauce so no meat pokes up above the surface. The cooking happens in the sauce, not in the hot air of the oven.
The sauce becomes too watery in the dish
During baking, the peppers and mushrooms release water, sometimes more than the cornflour can absorb. When you cut into the dish, a pale liquid runs out. Our fix: slice the mushrooms in advance, salt them briefly on a board, leave for five minutes and pour off the liquid. If you are short on time, simply tip the finished sauce through a sieve into a bowl after heating, spoon what stays in the sieve over the schnitzel and pour the sieved sauce on top. This keeps the consistency thicker.
The cheese turns dark on top and stays liquid underneath
If we put the cheese under the grill and step away even for a moment, the tips burn while the centre has not yet melted. Our fix: leave the oven door slightly ajar, stay close by, and check after three minutes. Once the cheese starts to colour, take it out after five minutes at the latest. The residual heat of the sauce melts the Mozzarella underneath reliably.
Ways we vary the recipe
Turkey schnitzel instead of pork: Turkey dries out even faster. We shorten the baking time to 35 minutes and add an extra tablespoon of double cream to the sauce. The flavour is lighter and slightly more neutral, which works well for children.
With leek and cream cheese: Instead of the two onions we use one leek (sliced into rings, added after the onions and run for 4 sec / speed 4) and swap 100 g of soured cream for full-fat cream cheese. The sauce becomes milder and creamier, which suits guests who do not enjoy the slight sharpness of soured cream.
Vegetarian with Halloumi slices: Instead of pork schnitzel, use two packs of Halloumi cut into thick slices and place in the dish. Bake for 25 minutes, then add the cheese and grill for five minutes. Halloumi releases salt of its own, so halve the teaspoon of salt in the seasoning.
Spicier with ajvar: We stir two tablespoons of hot ajvar into the finished sauce before pouring it over the schnitzel. This deepens the pepper flavour and gives the dish a Balkan twist that works especially well with rice.
What we serve alongside
We most often serve Spaetzle made with the Thermomix® alongside, because the Spaetzle absorbs the sauce better than rice and our children love the combination. On days when we want to keep things even simpler, some crusty white bread is enough to mop up the sauce from the edge of the plate. Anyone who wants the classic route cooks homemade pasta with the Thermomix®, and a complete main course with no packet ingredients is on the table. A garlic tip from our kitchen: we nearly always have a jar of garlic paste made with the Thermomix® in the fridge and use it instead of the two cloves when speed matters.
Keeps for 2 days in the fridge, reheat the sauce gently
Also nice with: mashed potato and baguette.
Leftovers keep covered in the fridge for two days. There is one trap when reheating: cream and soured cream sauces split if they get too hot, the fat separates and the sauce looks grainy. We reheat the schnitzel at 150°C in the oven for 15 minutes, covered with foil, rather than using the microwave. We would advise against freezing. The cornflour loses its binding after thawing and the cheese becomes rubbery. If we want to cook ahead, we prepare only the sauce with the vegetables, store it cold in the fridge, and pour it over fresh schnitzel the next day before baking.
If you are looking for more family recipes with the Thermomix®, take a look at our Spaetzle dough, pasta dough, and garlic paste. Three simple building blocks that keep coming together into new main courses throughout the week.
