0.5cupunsalted butter1 stick - at room temperature
0.5cupgranulated sugar
2largeeggs
2tablespoonswhole milk
1teaspoonpure vanilla extract
2largeGranny Smith applesor 3 medium - 1 pound 2.5 ounces before slicing
powdered sugarfor dusting
Instructions
Preheat oven to 350 degrees. Grease a 9-inch round cake or springform pan. Set aside. (I used Baker's Joy spray)
To make the streusel topping: sift the flour into a medium-sized bowl and cut in the butter until the mixture resembles bread crumbs. Set aside.
Quick Tip - Rub butter and flour together between your fingers to evenly distribute the butter.
To make the cake: sift the flour, baking powder, cinnamon, and salt into a large bowl.
In a separate bowl, beat the sugar and butter together until creamy. Gradually beat in the eggs, adding half of the flour mixture with the second egg. Gently fold in the remaining flour mixture along with the milk and vanilla.
Spoon the batter into the prepared pan and smooth the top.
Peel, core, and thinly slice the apples. Arrange the apple slices on top of the cake batter. Sprinkle the streusel mixture evenly over the top.
Bake in the preheated oven for 50 to 60 minutes, until browned and firm to the touch. Allow cake to cool before removing from pan. Dust cake with powdered sugar before serving.
Store leftovers in an airtight container at room temperature for up to 3 days.
Notes
I live in the Arizona desert and needed 2 tablespoons of milk to achieve the desired consistency. If you live in a humid climate you may only need one tablespoon. The batter should be thick like a brownie batter.
To remove the cake from the pan - flip the cooled cake over onto a large plate. Place a cooking rack on the bottom of the cake and flip it over onto the rack.
All ovens bake differently. Baking times are approximate and may vary by 10 minutes.