Pасстегаи с мясом or small pastries with meat filling

Pасстегаи- this is dish from Russian cuisine. In fact these are open small pastries, what can be filled with meat, fish vegetable or etc. filling. This open pocket leave the possibility to add stock or melted butter to the pastrie, so after it will especcialy juicy and tasty. These pastries are made from yeast dough. As you allready understood Foodtrip 2019 is in Russia. 

Recipe I got from here:

https://www.alizy.club/vypechka/pirozhki/solenye-pirozhki/rasstegaya-s-myasom.html

Ingredients:
Yeast dough:
200 g kefir
480 g flour
2 tbsp sugar
25 g fresh yeast
0,5 tsp baking soda
1 egg
0,5 tsp vinegar
3 tbsp vegetable oil
50 g warm water
1 tsp salt

Add to warm water yeast.

Add yeast mix to kefir. Then add salt and sugar. Mix well.

Add 1 egg to mixed ingredients.

Mix baking soda with vinegar and add it to the other ingredients.

Add vegetable oil to dough and half of flour  and mix into even mass. Cover with food film and let it stand for 30 minutes. After this time you should see the bubbles in dough. This shows that "yeast" is working.

Add other half of lower and knead it for 5 minutes until dough is elastic.

Cover with food film and let it stand for 90 minutes. Now the dough is ready for use.


Filling:
6 eggs
60 g butter
400g chicken 
2 tsp salt
1 onion
0,5 tsp grounded black pepper
100 g rice
handful chopped dill
80 g flour
2 tbsp vegetable oil
200g mayonese

Boil rice and let it cool completely.
Boil the eggs and let these cool down. Chop egg to small pieces.
Put 30 g of butter to pan, then add chopped chicken meat and onion. Add 1 tsp of salt and a little black pepper, then mix carefully. Cook until meat is done and then cool it down.
Mix dill with chopped eggs. Add minced meat, rice and mayonese.
Season with 1 tsp salt. Mix well.

Put dough to the flowered surface and divide it into 10 equal pieces. Roll pieces into rings and do not roll the rings thin as thin can be broken in time of baking.

Cover baking pan with baking paper and add 2 tbsp of vegetable oil to the baking paper. Spread it over the baking paper.
In the middle of dough ring add 1-1,5 tbsp of filling and close the edges and leave in the middle hole.
Put pastries to the paking paper. Take egg yolk and spread egg yolk over the pastries.

Take 30 g of butter and cut small cubes from it. Add to each pastry (to the hole) one cube of butter.

Heat oven to 180 C and bake pastries 20-30 minutes until these are golden brown. Let them cool about 25 minutes.