beef stroganoff

How To Make beef stroganoff

• Step 1
  Spread beef strips on a baking sheet, sprinkle with salt and pepper, top with onion slices and let stand at room temperature for 2 hours.
• Step 2
  Melt 2 tablespoons butter in a skillet and stir in flour.
• Step 3
  Mix in stock and heat, stirring until thickened.
• Step 4
  Blend in mustard and remove from heat.
• Step 5
  In another skillet, melt remaining butter, add beef and onion and saute until browned.
• Step 6
  Add the beef (but not the onion) to the sauce and simmer 15 minutes.
• Step 7
  Remove from heat and stir in sour cream (at room temperature).
• Step 8
  Serve onions separately or reserve for another use.
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