Ingredients:
- 1 ½ cups (190g) all-purpose flour, plus more for dusting
- 1 teaspoon baking powder
- ½ teaspoon baking soda
- ¼ teaspoon salt
- ½ cup (1 stick, 113g) unsalted butter, softened
- ¾ cup (150g) granulated sugar
- 2 large eggs
- 1 teaspoon vanilla extract
- ½ cup (120ml) buttermilk
- 3 medium Granny Smith apples (about 500g), peeled, cored, and diced
- 1 tablespoon lemon juice
- 2 tablespoons chopped pecans or walnuts (optional)
- ½ cup (100g) granulated sugar
- ¼ cup (60ml) water
- ¼ cup (60ml) heavy cream
- 2 tablespoons (28g) unsalted butter
- ¼ teaspoon salt
- ½ teaspoon vanilla extract
Instructions:
- Preheat oven to 350°F (175°C). Grease and flour the springform pan. Toss diced apples with lemon juice.
- Whisk together flour, baking powder, baking soda, and salt in a medium bowl.
- In a large bowl, cream together softened butter and sugar until light and fluffy.
- Beat in eggs one at a time, then stir in vanilla extract.
- Gradually add the dry ingredients to the wet ingredients, alternating with the buttermilk, beginning and ending with the dry ingredients. Mix until just combined. Be careful not to overmix.
- Gently fold in the diced apples and chopped nuts (if using).
- Pour batter into prepared springform pan and spread evenly. Bake for 50-60 minutes, or until a wooden skewer inserted into the center comes out clean.
- Let the cake cool in the pan for 10 minutes before releasing it from the springform pan and transferring it to a wire rack to cool completely.
- Combine sugar and water in a saucepan over medium heat. Cook, without stirring, until the sugar dissolves and turns a golden amber color.
- Carefully whisk in the heavy cream and butter. Be careful as it may bubble vigorously.
- Reduce heat to low and simmer for 1-2 minutes, stirring constantly, until the sauce is smooth and thickened. Remove from heat and stir in salt and vanilla extract.
- Drizzle the warm caramel sauce over the cooled apple cake. Serve immediately or store in an airtight container in the refrigerator.