French cut steak Recipe | Food Network UK

Ingredients

• 1 tsp paprika
• 1/2 tsp onion powder
• 1/2 tsp garlic powder
• Salt and freshly ground black pepper
• 1 (.5kg) skirt steak, cut in half
• 2 Tbsp vegetable oil, divided
• 56g butter, divided
• 2 medium sweet onions, sliced
• 75ml white wine
• 2 Tbsp red wine vinegar
• 75ml beef stock or broth