Preheat oven to 350°F (175°C) and grease two 9-inch round baking pans.

In a bowl, whisk together flour, baking powder, and salt. Set aside.

In a large bowl, cream together softened butter and granulated sugar until light and fluffy.

Add eggs one at a time, then mix in orange juice, zest, and vanilla extract until smooth.

Gradually combine dry ingredients with wet mixture on low speed until just mixed.

Divide batter into prepared pans and bake for 25-30 minutes or until golden brown.

Allow cakes to cool completely before frosting with whipped cream or dusting with powdered sugar.