Preheat Oven & Prepare Pan

Preheat oven to 350°F (175°C).

Grease and flour a 9-inch (23 cm) round or square cake pan.

Mix Dry Ingredients

In a medium bowl, combine flour, baking powder, baking soda, salt, cinnamon, and nutmeg. Set aside.

Cream Butter & Sugars

In a large bowl, beat softened butter with granulated and brown sugar until light and fluffy.

Add eggs one at a time, beating well after each addition. Stir in vanilla extract.

Combine Wet & Dry Ingredients

Mix in yogurt (or sour cream) to the butter mixture.

Gradually fold in the dry ingredients until just combined.

Add Apples & Nuts