Wild Blueberry Buckle

Ingredients

• FOR THE TOPPING:
• 4 Tablespoons Unsalted Butter, Softened
• 6 Tablespoons Flour
• 1/2 cups Sugar
• 1/4 teaspoons Kosher Salt
• 3/4 teaspoons Ground Cinnamon
• 1/8 teaspoons Freshly-ground Nutmeg
• _____
• FOR THE CAKE:
• 1-3/4 cup Flour, Plus More For Pan
• 1/2 teaspoons Kosher Salt
• 2 teaspoons Baking Powder
• 1 cup Sugar
• 4 Tablespoons Unsalted Butter, Softened, Plus More For The Pan
• 1 whole Large Egg
• 2 teaspoons Vanilla Extract
• 1/2 cups Milk
• 1 pound Fresh Blueberries