Start by caramelizing the onions. Melt the butter in a large skillet over medium-low heat. Add the onions and season with salt. Cook, stirring occasionally, until the onions start to turn golden brown, about 40-45 minutes.
Add the thyme and wine. Stir to combine and let the wine reduce for 1-2 minutes.
Prepare the sandwiches. Spread mayonnaise on one side of each piece of bread. Place 2 slices of bread on a skillet, mayonnaise side down. Evenly divide the onions between each. Season with black pepper and sprinkle thyme on top of each. Arrange 2 slices of gruyere cheese on top of each slice of bread. Place the remaining slices of bread on top, mayonnaise side up.
Heat the skillet over medium-low heat. Let the sandwiches cook for 3-4 minutes then flip and cook for 3-4 minutes on the other side. The bread should be golden brown and crispy. If the cheese isn’t entirely melted, warm the sandwiches in the microwave for 20-30 seconds.
In no event shall Festival Foods, its affiliates and its third party providers be liable to you or any third parties for any illness or damages of any kind, direct or indirect, arising out of, or in any way connected with, your use of the information or recipes provided on, or accessed through, this website. Service provider, its affiliates and its third party providers disclaim any liability, loss or obligation in connection with the content provided on this website. This website, and the recipes and information on this website, are provided strictly "as is" and without warranty of any kind, and should not be construed in any way as medical advice or instruction. Consult the appropriate health professionals before using any of the recipes or information on this website.
Start by caramelizing the onions. Melt the butter in a large skillet over medium-low heat. Add the onions and season with salt. Cook, stirring occasionally, until the onions start to turn golden brown, about 40-45 minutes.
Add the thyme and wine. Stir to combine and let the wine reduce for 1-2 minutes.
Prepare the sandwiches. Spread mayonnaise on one side of each piece of bread. Place 2 slices of bread on a skillet, mayonnaise side down. Evenly divide the onions between each. Season with black pepper and sprinkle thyme on top of each. Arrange 2 slices of gruyere cheese on top of each slice of bread. Place the remaining slices of bread on top, mayonnaise side up.
Heat the skillet over medium-low heat. Let the sandwiches cook for 3-4 minutes then flip and cook for 3-4 minutes on the other side. The bread should be golden brown and crispy. If the cheese isn’t entirely melted, warm the sandwiches in the microwave for 20-30 seconds.
Slice in half, serve, and enjoy!
Please enter a phone number you would like to text this recipe to.
Please enter a valid phone number.
There was an error sending your shopping list! Please try again.
What's Trending
Be In The Know!
Sign up for our email list and receive weekly deals, special offers,
event information and much more!
Please enter a valid email address.