FRENCH ONION MUSHROOM GRILLED CHEESE SANDWICH
 
 
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Ingredients
  • 2 lbs onions, peeled, halved and thinly sliced
  • 6 tbsp olive oil, divided
  • 3 tbsp butter
  • ½ tsp salt
  • ½ tsp sugar
  • ½ lb white mushrooms, sliced
  • 1 tsp dried thyme
  • 2 cups shredded smoked Gouda
  • 4 slices bread
  • 1 tbsp mayonnaise
Instructions
  1. First for the onions, heat 3 tbsp of oil and butter in a heavy pan, cast iron seems to work best
  2. Add all of the onions, stirring to coat well with butter and oil
  3. Sprinkle with salt and sugar
  4. Continue to cook over medium high heat, stirring occasionally until the onions begin to brown and caramelize.
  5. This should take about 20-25 minutes.
  6. Remove onions from pan and set aside.
  7. Add the remaining 3 tbsp oil to your onion pan and heat until it begins to smoke.
  8. Add the mushrooms stirring to coat well with oil.
  9. Add thyme.
  10. Continue to sauté over medium high heat until mushrooms begin to brown.
  11. Return onions to your pan and stir to combine with mushrooms
  12. Time to make sandwiches
  13. Heat grill pan.
  14. Paint one side of each bread slice with mayonnaise.
  15. These will be the outsides of your grilled sandwich.
  16. Divide half the cheese evenly over two slices of bread, the non-mayo sides.
  17. Pile generous helpings of the onion mushroom mixture on the cheese.
  18. Top with the rest of the cheese.
  19. Add the two remaining slices of bread on each, mayo side out
  20. Place carefully onto your heated pan and grill until golden.
  21. Flip and repeat.
Recipe by SEA SALT GALLEY KAT at https://www.seasaltgalleykat.com/sandwiches/french-onion-mushroom-grilled-cheese-sandwich/