
¼ cup butter
¼ cup maple syrup
¼ cup apple cider
3 pounds sweet potatoes, peeled (5 medium)
3 Granny Smith apples, cored
1 teaspoon kosher salt, divided
1 cup unsalted roasted cashews
1 tablespoon olive oil
1 tablespoon finely chopped fresh rosemary
¼ teaspoon garlic powder
¼ teaspoon cayenne pepper