A delightful apple walnut cake that's moist, flavorful, and perfect for any occasion.
Preheat your oven to 350°F (175°C).
Ensure your oven is fully preheated before placing the cake inside for even baking.
Grease the bottom of a 9x13 inch baking pan with cooking spray.
Use parchment paper for easier removal of the cake after baking.
In a large mixing bowl, combine the granulated sugar, brown sugar, buttermilk, canola oil, vanilla extract, and eggs. Mix on low speed until well blended.
Mix just until combined to avoid overmixing, which can make the cake dense.
Add the all-purpose flour, whole wheat flour, baking soda, ground cinnamon, and salt to the wet mixture. Mix on low speed until the batter is smooth.
Sift the dry ingredients together before adding to ensure even distribution.
Fold in the grated apples and chopped walnuts gently using a spatula.
Be gentle to maintain the airiness of the batter.
Pour the batter into the prepared baking pan and spread it evenly.
Tap the pan gently on the counter to release any air bubbles.
Bake in the preheated oven for 40-45 minutes, or until a toothpick inserted in the center comes out clean.
Check the cake at the 40-minute mark to avoid overbaking.
Allow the cake to cool in the pan on a cooling rack for 1 hour before serving.
Letting the cake cool completely helps it set and makes it easier to slice.
Slice and serve the cake as is, or with a dollop of whipped cream or a scoop of vanilla ice cream.
Garnish with a sprinkle of powdered sugar for a decorative touch.