
The most important thing for your tarte flambée toast in 30 seconds
- Preparation time: 30 minutes (10 minutes preparation + 20 minutes baking time)
- Difficulty: Simple – perfect for beginners
- The special: Everything is mixed in a bowl and baked on pre-toasted bread until golden brown – a crispy base guaranteed
- Perfect for: Stressed evenings, spontaneous guests, party buffets and everyone who loves tarte flambée but doesn’t want to make dough
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Tarte flambée toast: When hunger strikes faster than any dough
Tarte flambée toast is the answer to those evenings when you come home completely exhausted, your stomach is growling – and the thought of kneading dough is about as attractive as Monday morning at six. That’s exactly how we felt when this recipe was created: We wanted tarte flambée, but didn’t have ready-made tarte flambée dough in the house. Do it Yourself? No chance, the hunger was faster and the desire was non-existent. So we quickly used slices of toast as a basis – and the result simply impressed us.
What you get here: a creamy, spicy sour cream mixture with diced ham and red onions on crispy pre-toasted bread, baked until golden brown and ready in just under 30 minutes. If you our Alsatian style tarte flambée snails love, you will adore this quick version. And for fans of gratinated bread: our Croque Monsieur is the perfect French addition.

The most important ingredients for your tarte flambée toast
Schmand – The creamy centerpiece
Sour cream is the soul of this recipe. With its 24% fat, it ensures just the right amount of creaminess without making the toast soggy. You need two cups of 200 g each – that sounds a lot, but it spreads perfectly across 14 slices of toast. If you want to make less, you can easily halve the quantities. Alternatively, crème fraîche also works, which tastes a little more sour and gives the whole thing a subtle French touch. Sour cream also works in an emergency, but it will be a little more liquid.
Our tip: For the best consistency, let the sour cream stand briefly at room temperature beforehand, then it will be easier to stir.
Ham cubes – The spicy kick
125 g diced ham brings the hearty, smoky taste that you know from the classic tarte flambée. Whether cooked ham or streaky bacon – both work, but bacon cubes become a little crispier when gratinated and bring a different flavor. Our Tarte flambée with Serrano Incidentally, ham gave us the idea of chopping Serrano ham into the mixture – an upgrade for special evenings.
Red onions – the sweet, mild freshness
Red onions are no coincidence here. They are milder and slightly sweet, which harmonizes wonderfully with the creamy sour cream. Two small pieces are enough – finely diced, they disappear into the mixture and release gentle onion aromas when gratinated. Of course you can also use white onions or spring onions.
Spring onions are even twice as good: the white part in the mixture, the green rings as a fresh topping after baking.
Grated Cheese – The golden brown crown
100 g of grated cheese provides the melting, golden brown coating that makes every tarte flambée toast irresistible. Gouda, Emmental or a ready-made gratin cheese mix all work well. If you like it more intense, mix in some grated Gruyère or mountain cheese – it becomes particularly aromatic when baked and adds a nutty depth.

The 5 secrets for perfect tarte flambée toast
1. Always pre-toast toast. This is the absolute game changer and our most important tip. A quick trip into the toaster draws moisture out of the bread and prevents the sour cream from soggy the toast. Three minutes on low heat is enough – just brown slightly, not too dark.
2. Mix everything in a bowl. Sour cream, diced ham, diced onions and cheese all go together in a bowl. This means that every bite is evenly creamy and spicy and nothing slips down while eating.
3. Do not apply too thickly. An even layer of about half a centimeter is ideal. Too much mixture takes too long to bake and the base becomes soft.
4. Every oven is different. 200 °C circulating air and 20 minutes are a guideline. But what’s important is the result: get the toast out as soon as the mixture bubbles nicely golden brown – that can be after 15 or 22 minutes.
5. Season well. The mixture can be seasoned a little more intensely than you would eat it plain. By gratinating and combining it with the mild toast, the flavor is distributed and becomes more harmonious. But definitely make sure that the bacon is salty.
What makes our tarte flambée toast special
Most tarte flambée toast recipes rely on the classic principle: put sour cream on it, put ham on it, put onions on it, put it in the oven. That works – but our way is easier. We mix all the ingredients in a bowl to form a flavorful mixture, which you simply spread on the pre-toasted slices.
The advantage: Everything holds together like a bomb, the flavors are distributed evenly and every bite tastes like the perfect combination of creamy sour cream, spicy ham and sweet onion. You can also prepare the mixture wonderfully. Mix it in the evening, put it in the fridge, then just spread it on the next day and put it in the oven – perfect for stressful days.
What also worked great: the mixture is also ideal as a filling for puff pastry pockets, similar to ours Stuffed puff pastry rolls. Simply fill ready-made puff pastry sheets with it, close them and bake until golden brown – a brilliant party snack. And whether you’re just cooking for two people at the end of the day or for 20 guests at the buffet: halve the quantity or simply double it. The principle remains the same.

Baked tarte flambée toast: step-by-step instructions
Mix the sour cream mixture (5 minutes): Peel the red onions and cut them into fine cubes. Put them in a large bowl together with both cups of sour cream, the diced ham and the grated cheese. Season generously with salt and pepper – the mixture can be spicier than you would eat it plain.
Pre-toast the toast (5 minutes): Preheat oven to 200°C. While you mix the mixture, the 14 slices of toast go into the toaster in portions or you simply put them in when preheating the oven. Only brown lightly, not too dark – they will go back in the oven.
Top and put in the oven (2 + 20 minutes): Distribute the sour cream mixture evenly over the pre-toasted slices and place them on the grill. Put the whole thing in the preheated oven for about 20 minutes. Keep an eye on the toasts and take them out as soon as the mixture is bubbling golden brown and browning slightly – that’s your sign that they are perfect.
Alternatively, the tarte flambée toasts can also be made in the Air fryer at 190 °C in just 15 minutes. Anyone who knows our tips for the hot air fryer knows: the air fryer is a real miracle device for crispy baked snacks like these.
Garnish and enjoy: Take the steaming, fragrant toasts out of the oven and sprinkle freshly chopped chives or fine spring onion rings over them. This goes well with a crisp salad or simply as a snack on the couch while watching TV. And for the next big evening with friends: combine the tarte flambée toasts with ours Pizza sticks and ours Puff pastry rolls with Serrano ham to a relaxed finger food buffet.
📖 Recipe
Tarte flambée toast
Preparation time
10 minutes
Cooking time
20 minutes
Total time
30 minutes
🥕 Ingredients for the recipe
- 14 slices toast
- 2 Mug sour cream 200g
- 125 G Ham cubes
- 100 G Grated cheese to taste
- 2 small red onions
- Salt
- pepper
- something chives
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Peel and dice the onion and mix with the sour cream, diced ham and cheese. Then season the mixture with salt & pepper.
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Lightly toast the toast and then spread the onion and diced ham mixture onto the toast slices.
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Now bake the tarte flambée toasts in the oven on the rack for approx. 20 minutes at 200°C (please preheat beforehand) or in the hot air fryer for 15 minutes at 190°C until they are golden brown.
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Alternatively: Bake in the hot air fryer at 190 °C for approx. 15 minutes.
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If you like, decorate the slices with a finely chopped spring onion or chives.
Calories: 535kcal | Carbohydrates: 42G | Protein: 16G | Fat: 34G | Sugar: 8G
Frequently asked questions about tarte flambée toast
Absolutely! The mixture will easily keep covered in the fridge for one to two days. Simply stir it briefly, spread it on the pre-toasted toast and put it in the oven. Perfect if you really want zero effort in the evening.
Both work excellently. Schmand is a little milder and creamier, crème fraîche has a fine acidity that is closer to the Alsatian original. You can also mix both – then you get the best of both worlds.
Gouda and Emmental cheese are classics that melt reliably and brown beautifully. For more flavor, you can mix in Gruyère or mountain cheese. Mozzarella also works, but it pulls strings – which some people love and others don’t.
The secret lies in the pre-toasting. Put the slices briefly in the toaster beforehand so that the surface is sealed.
Clear! Simply leave out the ham cubes and replace them with finely diced peppers, smoked tofu or dried tomatoes. The mixture then becomes a little looser, but beautifully colorful and aromatic.
Would you like to cook again?
Tarte flambée toast is honestly one of those recipes that makes you wonder why you ever bothered with tarte flambée dough. In 30 minutes, you have a golden brown, bubbling, creamy, crunchy snack on the table that can do everything from a quick after-work meal to a movie night snack to a large party buffet. Try it out and show us your results on Instagram @gernekochen – we look forward to your version! And if you’re really in the mood for tarte flambée: ours Tarte flambée with asparagus, cooked ham and truffle cream is a dream for the asparagus season.
Lose and taste good.




