Pecan Pie Upside Down Cake - Radhi Devlukia

Ingredients

• 1 cup pecan
• 1/2 cup light brown sugar
• 2 tablespoons maple syrup
• 1 tablespoon corn starch
• 1 cup unbleached all purpose flour
• 1/2 cup brown sugar
• 1 teaspoon baking powder
• 1/2 teaspoon baking soda
• 1 cup milk
• 1 tablespoon apple cider vinegar
• 1/2 cup melted butter
• 1 tablespoon maple syrup
• 1/2 teaspoon vanilla essence