Butter loaf pan and turn on oven to 350°.
In a small bowl, sift together 1¼ cups of all-purpose flour, salt and baking powder and set it aside.
In a medium mixing bowl, cream butter and sugar until fluffy. Beat in eggs one at a time until well combined and stir in vanilla extract, greek yogurt and chopped candied oranges.
Gradually stir in dry ingredients to the mixing bowl and mix until well combined but do not over mix. Lastly, fold in currants to the batter.
Transfer batter into loaf pan and smooth out the surface with silicone spatula. Place loaf pan on bottom rack of oven and bake for 50-55 minutes or until a toothpick inserted into the center of cake comes out clean.
Let the loaf cake cool in the pan for 15 minutes, then take it out of the pan and let it cool down completely on a cooling rack.