INGREDIENTS
2 tbsp
vegetable oil
1
large onion, (thinly sliced)
4 oz
baby bella mushrooms, (sliced)
2 tbsp
unsalted butter
1 1/2
granny smith apples, (cubed into 1/2-inch cubes)
1 tsp
granulated sugar
1 1/2 oz
grated gruyere cheese
2 tbsp
chives, (minced)
1/2 tsp
dried thyme
1
: 1 pound package of frozen puff pastry, (thawed)
1
egg, (beaten)