German Sweet&Sour Eggs

Sweet&Sour Eggs ("Süß-Saure Eier") or "Mustard Eggs" ("Senfeier") is a typical East German dish. 

I remember mentioning it to people from the West who just cringed because the name suggests something rather gross than tasty.

But it is delicious!

The description "sweet&sour" refers to the sauce with which the eggs are served.

It's a roux-based sauce containing vinegar and mustard for a sour note and sugar that adds the 

sweetness to it.

What you need:
6-8 large eggs
60-80g butter 
approx. 3-4 Tbsp all-purpose flour
¾-1 ltr. cold water and milk (e.g. ¼ milk, ¾water)
white wine vinegar
white sugar
1-2 tsp mustard
150-200g smoked bacon cubes
salt, pepper
chopped chive or parsley for decoration

Directions:

Fry smoked bacon cubes in a pan until brown.
Prepare a roux; melt butter in a saucepan. Whisk in flour until crumbly.
Now slowly pour in the water-milk mix and continue to whisk.
If the sauce gets too thick add a bit more water or milk.
If it is too thin just mix some flour with water in a small bowl and pour this mixture into the sauce.
Now season with whit wine vinegar, salt, pepper, sugar and mustard.
Start with 1tbsp vinegar, 1 tsp sugar, one tsp salt and one tsp mustard.
You will probably have to add more.
But you rather start with small amounts and try in between before adding more.
Your goal is to have a sauce that is sweet and sour at the same time.
You can taste the mustard such as the vinegar, the salt and the sugar without having one ingredient covering up the others.
Now add the bacon cubes and chive or parsley.
In the meantime boil the eggs for 6½-7 minutes (depends on the size of each egg).
The egg yolk should still be soft inside.
Chill them in cold water for a moment.
Then peel off the eggshell and add the eggs to the sauce.

Serve with potatoes.