For the Spiced Apple Pie Filling

• Peel and dice the apples.
• Add the apples, butter, brown sugar, cinnamon, nutmeg, allspice, and salt to a medium skillet or saucepan. Stir and cook over medium heat for about 5 minutes, until a sauce begins to thicken and the apples soften slightly. 
• Whisk together the water and cornstarch until no clumps remain.
• Add the cornstarch slurry to the apple mixture and cook for an additional 2-3 minutes, or until the sauce thickens.
• Remove from heat and set aside.

For the Cinnamon Oat Crisp Topping

• Dice the butter into small chunks.
• Add all of the ingredients to a medium bowl and combine using your hands.
• Continue to mix and pinch the butter until everything comes together into pea-sized crumbles.
• Set aside.

For the Browned Butter Blondie Bottom

• Preheat the oven to 350 and prepare a 9X9 baking pan with parchment and non stick spray.
• Brown the butter in a medium saucepan. Add the butter and cook over medium heat. The butter will melt and crackle. Swirl the butter around and continue to cook until in reaches a light amber color and you can see browned bits at the bottom on the pan. Cool slightly
• Pour the butter into a medium bowl.
• Add the brown sugar and whisk until it comes together and the sugar begins to dissolve, about 1 minute.
• Whisk in the salt and vanilla.
• Add the eggs and whisk quickly so that the warm butter doesn’t begin to cook the eggs. Continue to whisk for another 2-3 minutes to incorporate air into the batter. This will help the blondies rise. 
• Fold in the flour. It may seem dry at first, but just continue to fold it and it will come together.
• Press the blondie batter into the prepared baking pan into an even layer.
• Spoon on the apple mixture and spread into an even layer.
• Top evenly with the crisp topping.
• Bake for 35-40 minutes, or until the sauce from the apple pie filling begins to bubble up through the crisp topping around the edges. 
• To serve: Enjoy right out of the oven topped with ice cream and caramel sauce, or let them set up in the fridge for a couple of hours and enjoy cold!