Creating an incredible Applesauce Spice Cake can be straightforward if you follow these simple steps:

1. Preheat Your Oven: Start by preheating your oven to 350°F (175°C). Grease and flour a 9×13-inch baking pan.
2. Mix Dry Ingredients: In a large bowl, whisk together the flour, baking powder, baking soda, cinnamon, nutmeg, allspice, and salt.
3. Combine Wet Ingredients: In another bowl, mix the sugar, applesauce, vegetable oil, eggs, and vanilla extract until well combined.
4. Combine Mixtures: Gradually add the wet ingredients to the dry ingredients, stirring until just combined. Be careful not to overmix.
5. Add Nuts (Optional): If you’re using nuts, fold them into the batter gently.
6. Pour Batter: Pour the batter into the prepared baking pan, spreading it evenly.
7. Bake: Place in the preheated oven and bake for 30-35 minutes or until a toothpick inserted in the center comes out clean.
8. Cool: Once baked, remove the cake from the oven and allow it to cool in the pan for about 15-20 minutes. Then transfer it to a wire rack to cool completely.
9. Dust with Powdered Sugar: If desired, dust the cooled cake with powdered sugar before serving.

These steps will guide you in creating this delicious cake effortlessly.