Preheat your oven to 350 degrees Fahrenheit.
Prepare your 10 inch baking pan by lining the bottom with parchment paper and greasing the sides with cooking spray or olive oil.
In a medium size bowl combine the sifted flour, baking powder, cinnamon and salt. Whisk until well combined and set aside.
2½ cups all purpose flour, sifted, 2½ tsp baking powder, ¼ tsp salt, 1 tsp cinnamon
In the bowl of your stand mixer combine the sugar, olive oil and orange juice. Use the paddle attachment of your mixer until well combined.
1 cup sugar, ¾ cup olive oil, 1 1/4 cup orange juice
Slowly add the dry ingredients to the wet ingredients with the mixer speed set to very low.
Once combined, add in the walnuts and raisins. Mix until just well combined.
½ cup golden raisins, ½ cup chopped walnuts
Transfer the batter to your prepared baking pan and bake in the middle rack of your oven for 45 - 55 minutes or until a toothpick inserted into the center comes out clean.
Remove from oven and let cool in the pan for 5 minutes before transferring to a cooling rack.
If desired, dust with a light dusting of powdered sugar.
powdered sugar, optional for decorating
Enjoy!