Love Food Hate Waste

Ingredients

• 6 lamb or pork kidneys
• 1 teaspoon butter
• 1 tablespoon olive oil
• Salt and freshly ground black pepper
• 3 shallots, finely chopped
• 1 clove garlic, crushed
• ¼ cup beef stock
• 2 tablespoons dry sherry (if you like a sweet sauce you can add a little more)
• 1 teaspoon hot English mustard
• Flour for sprinkling
• 1 teaspoon fresh thyme leaves
• 1 teaspoon chopped fresh parsley