Rognoni d'Agnello allo Sherry
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Step 1 of 13
The kidneys
1 of 13
Remove the outer skin, butterfly each kidney lengthwise leaving one hinge, then use small sharp kitchen scissors to snip away the hard white central core and branches. Do not pull.
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What you are cooking with
Kidneys
- 8 Lamb kidneys, whole, skinned, butterflied, and hard white cores scissor-trimmed
- 500 ml Milk, optional for refrigerated soaking; use more if needed to cover
- 1 tbsp Neutral oil, for searing
- 15 g Unsalted butter, for searing
- to taste Sea salt and black pepper
Sweet onion fondue
- 2 Brown onions, medium-large, very thinly sliced
- 25 g Unsalted butter
- 1 tsp Fresh thyme leaves
- small splashes, only as needed Water
- one pinch Fine salt
Sherry-Dijon glaze
- 90 ml Dry sherry
- 180 ml Rich lamb or beef stock
- 2 tsp Dijon mustard
- ½ tsp Worcestershire sauce, optional
- 25 g Cold unsalted butter, diced
- ½ tsp Sherry vinegar or lemon juice, adjust to taste
Crispy potato and finish
- 450 g Potatoes, peeled and coarsely grated
- 2 tbsp Clarified butter or neutral oil
- 40 g DUKAI Fennel Rosato pickled fennel, drained and finely diced; optional alternative: crisp cucumber pickle
- 1 tbsp Chives or flat-leaf parsley, finely chopped
- to taste Sea salt