Grilled Cheese with Caramelized Onions - Ginsberg's Foods

Ingredients

• 4 large White or yellow onions, halved and sliced into strips
• 5 Tbsp Olive oil
• 1/4 cup Water
• 1/4 tsp Salt
• 1 Tbsp Hellmann’s® Mayonnaise Squeeze Bottle
• 2 slices Sourdough bread, fresh
• 3 Tbsp Caramelized onions, prepared, diced
• 2 Thyme sprigs, fresh
• 1/4 cup Gruyere cheese, grated
• 2 Tbsp Maille Old Style Mustard Jar