01 -
Coat a 9-inch springform pan with spray, then place parchment at the bottom. Set the oven to 350°F and move the rack down a notch.
02 -
Stir together the oats, flour, cinnamon, both sugars, and melted butter using a fork until the mixture forms little clumps. Leave it aside.
03 -
Mix the cinnamon with the brown sugar in a tiny bowl. Put it aside for now.
04 -
Chop your peeled apples into small pieces, roughly 1/3 to 1/2 inch chunks. Toss them in a bowl along with the cinnamon and granulated sugar. Keep it nearby.
05 -
In a small bowl, stir the dry ingredients (salt, flour, powder). In another bowl, cream room-temperature butter with sugar and vanilla, then add eggs one by one. Fold in sour cream, then slowly mix in the dry ingredients till smooth. Scrape down the sides while you mix.
06 -
Beat the softened cream cheese with sugar and vanilla till smooth. Add in the egg and mix just till it blends. Place to the side.
07 -
Spread a layer of batter into the springform pan. Add half the apples, gently pressing them in. Sprinkle cinnamon mix. Pour the cream cheese layer over the top, avoiding the edges. Add some more apple cubes and cinnamon mix. Put the leftover batter on top, smoothing it, then finish with apples, cinnamon mix, and the crumble topping.
08 -
Pop it in the oven for 70–90 minutes. Start checking at 40–50 minutes to cover with foil if it darkens too fast. When a toothpick comes out of the center clean, let it cool in the pan for 20–30 minutes. Use a knife to loosen edges and remove the springform side.
09 -
Combine powdered sugar, vanilla, and milk/cream till it’s smooth. Drizzle on top of the cooled dessert. Keep covered at room temperature for one day, or stick it in the fridge for up to seven days.