Preheat oven to 325 degrees.
Wash, peel, core, and slice apples. Combine apples and Cinnamon Toast Crunch™ Cinnadust™ Seasoning in a large bowl, and set aside.
Melt butter and pour into a 9 x 13 inch baking pan.
In a large mixing bowl, add flour, milk, and vanilla and stir until smooth. Add Clabber Girl® Baking Powder, stirring until combined.
Pour batter over melted butter, do not stir. Pour apples evenly over batter and butter. Once again, do not stir.
Bake 40 to 50 minutes until edges are browned and filling is bubbly.
Allow to cool slightly before serving. Perfect with a scoop of vanilla ice cream or fresh whipped cream.