#### **Instructions:**
1. **Preheat the Oven:**
– Preheat your oven to 350°F (175°C). Grease and flour a 9-inch round or square baking pan.
2. **Prepare the Dry Ingredients:**
– In a medium bowl, whisk together the flour, baking powder, baking soda, cinnamon, nutmeg, and salt. Set aside.
3. **Cream the Butter and Sugar:**
– In a large mixing bowl, beat the softened butter and sugar together until light and fluffy, about 2-3 minutes. Add the eggs one at a time, beating well after each addition. Mix in the vanilla extract.
4. **Combine Wet and Dry Ingredients:**
– Gradually add the dry ingredients to the wet ingredients, alternating with the sour cream (or Greek yogurt), beginning and ending with the dry ingredients. Mix until just combined.
5. **Fold in the Apples:**
– Gently fold in the diced apples until evenly distributed throughout the batter.
6. **Pour into the Pan:**
– Pour the batter into the prepared baking pan and smooth the top with a spatula.
7. **Add the Cinnamon Sugar Topping:**
– In a small bowl, mix together the sugar and cinnamon for the topping. Sprinkle this mixture evenly over the top of the cake batter.
8. **Bake:**
– Bake for 35-40 minutes, or until a toothpick inserted into the center of the cake comes out clean and the top is golden brown.
9. **Cool and Serve:**
– Allow the cake to cool in the pan for about 10 minutes, then transfer it to a wire rack to cool completely. Serve warm or at room temperature.
### **Optional Additions:**
– **Nuts:** Add ½ cup chopped walnuts or pecans to the batter for a nutty crunch.
– **Glaze:** Drizzle a simple glaze made of powdered sugar and milk over the cooled cake for an extra touch of sweetness.
This **Apple and Cinnamon Cake** is perfect for breakfast, dessert, or as an afternoon snack with a cup of coffee or tea. Enjoy!