Curried Kingklip and mushrooms with beurre blanc

Ingredients

• 1 bunch chives
• 1/4 cup oil
• 150 g kingklip portions
• 4 tbsp curry powder
• pinch of salt
• pinch of ground black pepper
• 50 ml olive oil
• 300 g mixed mushrooms (button, portobello, exotic)
• 1 tbsp olive oil
• 100 g butter
• 35 garlic cloves in skin
• 250 g butter
• 4 shallots/onions
• 180 ml white wine vinegar
• 360 ml dry white wine
• 250 ml fresh cream
• 10 - 12 potatoes