Heat oven to 350°. Spread almonds on a parchment paper-lined baking sheet; cook until heated through, about 5 minutes; set aside. Heat butter, brown sugar, curry powder, ginger, and cayenne in a 2-qt. saucepan over medium heat; cook, stirring, until sugar is dissolved, about 5 minutes; pour glaze over nuts, stirring to coat evenly, return to oven and cook until slightly dry, about 15 minutes more. Sprinkle with salt and let cool before serving.