# What You Need:
→ Cake
01 - 2 cups all-purpose flour
02 - 1/2 cup granulated sugar
03 - 1/2 cup unsalted butter, softened
04 - 2 large eggs
05 - 1/2 cup whole milk
06 - 2 teaspoons baking powder
07 - 1/2 teaspoon salt
08 - 1 teaspoon vanilla extract
→ Apples
09 - 3 large tart apples (Granny Smith), peeled, cored, and thinly sliced
10 - 2 tablespoons lemon juice
11 - 2 tablespoons granulated sugar
12 - 1 teaspoon ground cinnamon
→ Streusel Topping
13 - 3/4 cup all-purpose flour
14 - 1/3 cup brown sugar
15 - 1/2 teaspoon ground cinnamon
16 - 6 tablespoons unsalted butter, cold and diced
17 - Pinch of salt
# Directions:
01 - Preheat the oven to 350°F. Grease and flour a 9-inch springform or round cake pan.
02 - In a large bowl, beat softened butter with granulated sugar until light and fluffy. Incorporate eggs one at a time, then mix in vanilla extract.
03 - Whisk together flour, baking powder, and salt in a separate bowl.
04 - Alternate adding the dry ingredients and milk to the butter mixture, beginning and ending with the dry ingredients. Stir just until combined.
05 - Pour the batter evenly into the prepared pan and smooth the surface.
06 - Toss sliced apples with lemon juice, granulated sugar, and cinnamon, then layer evenly over the batter.
07 - Combine flour, brown sugar, cinnamon, and a pinch of salt in a bowl. Cut in cold diced butter with fingers or a pastry cutter until crumbly.
08 - Evenly sprinkle the streusel mixture over the apple layer.
09 - Bake for 40 to 45 minutes until a toothpick inserted in the center comes out clean and the topping is golden brown.
10 - Allow the cake to cool in the pan for 15 minutes before removing. Serve warm or at room temperature.
