ඇපලුයි පැනියි කිරියි මෙච්චර රහද ? හදලම බලමුත. 🍎🍸 #short #fyp #viral

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Ingredients – 600g beef fillet, sliced thin (rump will also work well) – 1 brown onion, sliced thin lengthways – 200g button mushrooms, sliced – 2 tbsp grapeseed oil – 50g butter – 2 tbsp flour – 400ml beef stock – 2 tbsp Worcestershire sauce – 1 tbsp dijon mustard – 3 tbsp sour cream…