Onion (and spinach) tart - perfect for a picnic

I can hardly imagine how it’s going to be with a sun outside the window. But there it is! Almost holidays, so nice and warm...
The dish I will show you today, brings the Winter not the Summer to my mind, but it’s perfect as a cold appetizer for a picnic.

The yeast dough I used is just great! Fast, not soaking the filling and it rises perfectly (even its bottom). Recommending it to you from the bottom of my heart!



Ingredients
dough:
5,3 oz (150 g) milk
0,5 0z (15 g) fresh yeast
½ teaspoon sugar
7 oz (200 g) wheat flour
½ teaspoon salt
1 egg yolk
40 g oil
filling:
35 oz (500 g) onion
3 tbp oil
7 oz (200 g) smoked beacon or sausage
2 eggs
5,5 oz (150 g) sour cream 18-22 %
3,5 oz (100 g) hard cheese
½ teaspoon dry thymes
tbsp chopped parsley and chives
salt and pepper
(on top I put tomato slices)


Method
Whisk the milk with yeast and sugar, put aside for 10 min. In a bowl mix flour with salt, add yeast mixture, egg yolk and oil, knead until smooth. Cover and put aside to rise for 30 min. Thin slice onions, simmer on a low heat with thymes, until soft and clear (you may add some water). Add chopped beacon/sausage and simmer for another 5 min. In a bowl whisk eggs with sour cream and cheese. Season with salt and pepper, well combine.

Put the dough in a lined round cake pan (26 cm), evenly spoon the onion mixture. Bake for 35-40 min. at 360 F/180 oC. Before serving cool it down.

In another version I added 35 oz (500g) spinach, 2/3 garlic glove and nutmeg.