rack of lamb on welsh onion cake

How To Make rack of lamb on welsh onion cake

• Step 1
  Preheat the oven to 200C/gas 6. (400F).
• Step 2
  Peel the potatoes and slice very finely with a mandolin or sharp knife.
• Step 3
  Toss with the melted butter and season with plenty of salt and black pepper.
• Step 4
  Brush a shallow ovenproof dish with a little a little more melted butter.
• Step 5
  Layer the potato and onion in the dish, starting with potato and finishing with a neat layer of overlapping potato slices.
• Step 6
  Drizzle any remaining butter over the top.
• Step 7
  Cover the dish with foil and bake in the oven for 1 hour.
• Step 8
  Meanwhile, take the lamb out of the fridge to come to room temperature.
• Step 9
  After the onion cake has had an hour in the oven, remove the tin foil.
• Step 10
  Sit the lamb racks on top with their bones interlaced and tuck the rosemary sprig in the middle.
• Step 11
  Return to the oven for 15-25 minutes, depending on the size of the racks and how you like your lamb cooked.
• Step 12
  By now the potatoes should be beautifully tender and browned on the top.
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