I have never had real beef strogonaf, but I am familiar with the concept and I know this is how I would want it to taste! This is a perfect recipe for leftover buttermilk and the proportions of ingredients can be easily tweaked to fit individual preference. This is also a VERY cheap meal for those of us who have no income!
rub some salt, pepper, and a bit of olive oil into the steak about 15-30 minutes before applying heat
Heat a skillet to medium high heat and sear the steak on each side. I buy thin cuts of steak that I generally leave to sear for 2 minutes on one side and 1 minute on the other side for a medium/well done-ness
place cooked steak on a plate to rest
To the same pan add a dash of olive oil, let it heat up, and add the mushrooms and onion; saute for 2-3 minutes or until they seem cooked through
throw in the dried mushrooms and deglaze the pan with the beefstock/wine, reduce heat to low, and let simmer for about 2-3 minutes
remove the pan from the heat and stir in the buttermilk. If the sauce is too hot, the buttermilk will curdle. If you have used wine, the buttermilk will curdle due to the acidity. This will leave the sauce with a somewhat grainy LOOKING but not tasting texture. Frankly, this does not bother me and my buttermilk usually ends up looking a bit grainy. It still tastes great!
Bring water for pasta to a boil and salt it like the sea
Cook your pasta
Slice your steak, plate your pasta, throw your sauce over everything, and revel in your culinary prowess!