2 sweet onions halved and thinly sliced
1/4 teaspoon sugar
1/4 teaspoon sea salt
1 tablespoon dry sherry
1/4 teaspoon tabasco
1/2 teaspoon chopped fresh thyme
1 cup shredded Gruyere Cheese
1/2 cup sour cream
1/2 cup mayo
1/4 teaspoon freshly ground black pepper
Preheat oven to 400 degrees. Cook bacon in a large nonstick skillet. Remove to a paper towel lined plate to cool. Crumble. Add onions, sugar, and salt to bacon fat in the skillet and cook over medium-high heat for about 5 minutes. Reduce heat to medium and cook, stirring often, until onions turn a deep golden brown color. This can take as long as 20 minutes. If onions start to burn, turn heat down to medium-low. Add sherry and cook 1 minute. Stir in thyme and tabasco. Remove from heat. Mix together sour cream and mayo in a medium bowl. Add crumbled bacon, cheese, onion mixture, and black pepper. Mix together well and transfer to a 2-cup baking dish. Bake 20 minutes, or until bubbly and golden brown on top.