Beef Strogonov from Peter Flynn’s recipe collection

Ingredients

• 1 medium white onion | sliced finely
• 25 g unsalted butter
• 2 tbsp olive oil
• 180 g small chestnut mushrooms | sliced
• 100 ml beef stock
• 50 ml white wine
• 1 dsp plain flour
• ½ tsp pimentón
• 300 g beef fillets | sliced
• 2 tbsp brandy
• 100 ml sour cream (or crême fraîche or just double cream)
• dill | chopped
• parsley | chopped