Maple-Apple Pudding Cake

Ingredients

• 1 cup flour
• 1 1/2 teaspoons baking powder
• 1/2 teaspoon salt
• 1/2 teaspoon cinnamon
• 1 egg
• 1/2 cup dark brown sugar
• 1/2 cup whole milk
• 1/4 cup unsalted butter, melted
• 1 teaspoon vanilla
• 1 medium apple, peeled, chopped to 1/2-inch (1 cup)
• 1 cup cranberries, coarsely chopped (if using frozen do not thaw)
• 1 1/4 cups pure maple syrup, grade B
• 1/2 cup apple juice
• 1/3 cup walnuts, chopped (optional)