01 -
3 tablespoons unsalted butter, divided.
02 -
3 tablespoons extra virgin olive oil, divided.
03 -
3 pounds sweet onions, halved and thickly sliced.
04 -
1 tablespoon fresh garlic, minced.
05 -
1 1/2 teaspoons kosher salt.
06 -
1/2 teaspoon black pepper, freshly ground.
07 -
1 teaspoon dried tarragon.
08 -
1 teaspoon dried thyme.
09 -
1/3 cup brandy or white wine.
10 -
1 tablespoon Worcestershire sauce.
11 -
8 ounces button mushrooms, sliced.
12 -
1 1/2 cups white rice, uncooked.
13 -
2 cups fresh baby spinach, packed.
14 -
3 cups chicken stock.
15 -
1 cup heavy cream.
16 -
3-4 cups cooked chicken, torn into pieces.
17 -
4 ounces Gruyere Swiss cheese, shredded.