Preheat your oven to 160 C/ 325 F. Grease a 9 x 3 inch loaf cake pan well and dust with flour.
Whisk together the flour, salt and baking powder.
Mix the dried cranberries with a tablespoon of the flour mixture. Keep aside.
Rub the orange zest and sugar for a minute or two.
Beat the zested sugar and butter using an electric mixer or whisk for a few minutes until light , fluffy and creamy.
Beat in the eggs and orange juice.
Add the flour mixture in three additions alternating with the milk in two additions . So , 1/3 of the flour- 1/2 of the milk -1/3 of the flour- 1/2 of the milk- 1/3 of the flour. Scrape the sides and bottom of the bowl as needed.
Fold in the floured cranberries with a spatula.
Spread batter into the prepared pan. Sprinkle a few cranberries on top.
Bake for 50-55 minutes at 160 C/ 325 F until the cake spring back when touched or a skewer inserted in the centre comes out clean.
Cool in pan for 5 minutes and then remove from pan to cool completely, right side up on a wire rack.