Hungarian Christmas Mashed Potatoes

I found reference to this recipe at a budapest tourist guide. there it was called 'mashed potatoes with mustard seeds and deep fried onion'. i couldn't find a recipe but i did sort of find the components at various websites then i combined them & reworked it a bit. the onions need to be very soft & caramelized. this looks like a bowl of sweet potatoes with all that paprika! i would love some feedback!

Steps

Boil peeled and quartered potatoes in salted water till tender.

While potatoes are cooking --.

Heat skillet.

Add mustard seeds.

Cover & shake until the popping slows.

Add the butter & when melted , add the onions.

Cover and cook over low heat for 15 minutes.

Uncover , continue cooking over low heat for until very soft , dark & caramelized.

Add the paprika.

Stir over lowest heat for a minute or two until the paprika has lost its raw taste.

Set aside.

Back to the potatoes --.

Strain off cooking water & mash.

Add 1 / 2c of the sour cream and blend into potatoes.

Add the egg into the potatoes and whip.

Add the stick of butter & the remaining sour cream to taste.

Stir in the onion mixture.

Add salt to taste.

Ingredients

black mustard seeds, butter, onions, sweet hungarian paprika, potatoes, sour cream, egg, salt