Vegetarian pigs in a blanket-a-la Reddit

Hi! I posted a few days ago asking for help for making some vegetarian sausage rolls (I was later told by an American friend that they’re called pigs in a blanket) for my date. I got a lot of very helpful advice and tips that I put to use with great success!
I hereby present my vegetarian pigs in a blanket recipe!

Makes 10.

The sausages:
– 5 Vevia vegetarian sausages (or any sausages that doesn’t disintegrate when boiled)
– About 4-5 dl water
– A cube of vegetable bouillon
– A teaspoon MSG
– A dash of white vinegar
– Salt and pepper

The pastry:
– 50 grams of butter
– 0.5 dl buttermilk
– 1.4 dl water
– 15 grams of yeast
– Half an egg
– A tablespoon of sugar
– Less than half a teaspoon salt
– 345 grams all purpose flour

Before baking:
– The other half of the egg
– Sesame seeds

1. Cut the sausages in half and poke holes with a fork in them so the stock could absorb into them better.
2. Mix water, bouillon, vinegar, msg, salt and pepper together in a pot and bring it to a boil.
3. Throw the sausage in a let them simmer while making the pastry.
4. In another pot melt the butter then pour in the water and buttermilk.
5. Add the water/buttermilk mixture to a stand mixer, but it should be no hotter than 37 degrees or you’ll kill the yeast that you will also add now.
6. When fully incorporated with the yeast add the sugar, salt and egg.
7. Sift the flour. This step is unnecessary but I like how smooth the dough becomes.
8. Little by little add the flour until the dough is firm and smooth yet still a little sticky.
9. Lightly flour a smooth surface (I have a silicone mat I use) then pour the dough onto it.
10. Knead and roll the dough flat then cut out small pieces with either a pizza cutter, knife, ect.
11. If you want ketchup you can lightly brush a layer on half the dough (otherwise they are difficult to close)
12. Then roll up the sausages and put on a baking tray.
13. Cover them all with a damp towel once done and let rise for 1.5-2 hours.
14. 5-10 minutes before they’re done rising, preheat the oven to 190°C (375°F)
15. When done rising brush the egg on top of the pastry and sprinkle some sesame seeds on top.
16. Bake in the oven for 10-15 minutes and viola!

I am super appreciative of all the help I got to perfect the recipe and they were received very well by my date, who was flabbergasted by getting a whole bag of them haha. I am unsure about Americas imperial measurements, so you might need to do that yourself, otherwise I will maybe edit it later to translate it all. Last note I use a convection oven which uses fan heat, but according to google not all Americans has a convection oven so I lowered the temperature since for fan heat it’s supposed to be 200°C or about 392°F.
Thanks again everyone!!