onion tarte tatin is another salty version of the much better known apple inverted pie of French origin. After trying to make one, delicious, with cherry tomatoes, I decided to try my luck a second time making a second one with caramelized onions. The result was a real success. This rustic is a riot of flavors, if you like caramelized onions you can't help but try this fabulous recipe! I could suggest some changes (pepper, thyme, rosemary …), but the truth is that in my opinion this onion tarte tatin red it is perfect as it is!
First of all, if you have decided to prepare the shortcrust pastry at home, mix all the ingredients and let the dough rest in the fridge for at least 30 minutes.
Clean the onions and cut them into thin slices (try to cut them the same thickness).
Lightly grease the mold, sprinkle it with flakes of butter and arrange the onions on the bottom, without overlapping them.
Season with salt and sprinkle with sugar, then cover with the shortcrust pastry disc: prick the pastry and brush it with a little oil.
Bake for about 20 minutes or until golden brown at 160 ° C, in a preheated convection oven.
The onion tarte tatin is ready: quickly turn it upside down on a serving dish and serve immediately.
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