Directions:

To Prepare Caramelized Onions:
Heat the oil in a skillet over medium heat. Add the onions and cook, stirring occasionally, for 15 to 20 minutes until soft, sweet, and golden brown. Stir in the salt and set aside.

To Prepare Garlic Dijonnaise:
In a small bowl, stir together all ingredients until smooth. Cover and refrigerate until ready to use.

To Assemble Pastrami and Gruyere on Rye:
1. Spread 1 tablespoon Garlic Dijonnaise on one side of each slice of rye bread.
2. Build each sandwich on one slice of bread by layering:

• 1 slice Gruyère cheese
• 3 ounces sliced pastrami
• 2 tablespoons caramelized onions
• 1 slice Gruyère cheese.

3. Top with a second slice of bread, Dijonnaise side down.
4. Spread 1 teaspoon of softened butter on the outside of each side of the sandwich.
5. Heat a skillet, griddle, or grill pan over medium heat.
6. Cook the sandwich for 3 to 4 minutes per side, until the bread is golden brown and crisp and the cheese is melted.
7. Let rest for 30 seconds, then slice diagonally and serve warm. Enjoy immediately!

Chef Tips:

• No Gruyère? Swiss cheese makes an easy substitute with a similar nutty flavor.
• Make ahead: The Caramelized Onions and Garlic Dijonnaise can be prepared up to 3 days in advance and refrigerated.
• Need more extra crunch? Add a layer of dill pickle slices before grilling.
• Having a large gathering? Keep grilled sandwiches warm on a baking sheet in a 200 degrees Fahrenheit oven while preparing the remaining sandwiches.