Kip Filet With Apples And Red Currants

• 100 grams currants (red)
• 4 kip filets about
• 2 leeks about (thin)
• 1 egg (lightly beaten)
• 1 granny smith apple
• 28 gr butter
• 24 gr flour
• 7 ml french mustard
• 3 gr parsley (chopped)