GRILLED SAUSAGE SANDWICHES WITH CARAMELIZED ONIONS AND GRUYERE C

Steps:

• Heat 2 tablespoons oil in heavy large skillet over medium-high heat.
• Add onions and sauté until slightly softened, about 5 minutes.
• Stir in vinegar, sugar and caraway seeds.
• Reduce heat to medium-low and sauté until onions are deep brown and very tender, about 20 minutes longer.
• Season to taste with salt and pepper.
• (Can be prepared 2 hours ahead. Let stand at room temperature. Rewarm over low heat before using.).
• Preheat broiler.
• Brush 11x7-inch metal baking pan with oil.
• Place sausages in pan.
• Broil until sausages are brown and crisp, about 6 minutes per side.
• Transfer sausages to work surface and cut lengthwise in half.
• Arrange 3 sausage halves on each of 2 bread slices.
• Spread 2 teaspoons mustard over sausages on each.
• Top sausages with caramelized onions, dividing equally.
• Top with Gruyère or Emmental cheese slices, dividing equally.
• Cover with remaining 2 bread slices.
• Spread half of butter over upper bread slices.
• Heat large nonstick skillet over medium-low heat.
• Carefully invert sandwiches, buttered side down, into skillet.
• Cover and cook until bottoms are brown, about 5 minutes.
• Spread remaining butter over upper bread slices.
• Turn sandwiches, cover and cook until bottoms are brown, about 4 minutes longer.