INGREDIENTS
•
Nonstick vegetable oil spray
•
1 cup all purpose flour
•
1 teaspoon baking powder
•
1 teaspoon ground cinnamon
•
1/2 teaspoon ground ginger
•
1/2 teaspoon salt
•
1/4 teaspoon ground allspice
•
1 cup finely shredded peeled butternut squash
•
3/4 cup (packed) golden brown sugar
•
1/3 cup unsalted butter, melted
•
1 large egg
•
2 tablespoons finely grated peeled fresh ginger
•
1 1/4 teaspoons vanilla extract, divided
•
3/4 cup chopped toasted hazelnuts (about 4 ounces), divided
•
3 tablespoons whipping cream
•
3 ounces high-quality white chocolate (such as Lindt or Perugina)