Cake – Brownie Mischief

Ingredients

• 1 ⅔ cups (212g) all purpose flour, sifted
• 1 ¾ teaspoons baking powder
• ½ teaspoon fine sea salt
• ½ teaspoon cinnamon
• ¼ teaspoon ground nutmeg
• ½ cup (113g) unsalted butter, softened
• ¾ cup (150g) packed brown sugar
• ¼ cup (50g) granulated sugar
• 2 large eggs, room temperature
• 2 teaspoons pure maple extract or natural maple flavoring
• ½ cup (118ml) whole milk, room temperature
• ⅓ cup (75g) sour cream, room temperature
• 1 cup (142g) wild blueberries, fresh or frozen See note below*
• 1 cup (142g) wild blueberries, fresh or frozen
• ¼ cup (60ml) real maple syrup
• 1 pinch fine sea salt
• ⅓ cup (78ml) plus 1 tablespoon (15ml) water, divided
• 2 teaspoons cornstarch
• ¾ cup (177ml) cold heavy whipping cream
• 2 tablespoons (15g) powdered sugar, sifted
• ¼ teaspoon pure vanilla extract