Preheat oven to 350 °F.
Grease and flour a loaf pan. Tap out any excess flour.
Grate 1 orange with a microplane grater to obtain at least 2 teaspoons of zest.
In a medium-sized bowl, rub the zest into the sugar.
Stir in the plain yogurt and extract(s).
Whisk in the eggs, one at a time.
In a small bowl, whisk together the flour, baking powder and sea salt.
Add dry ingredients to wet ingredients until combined.
Finally, add the oil and continue to mix in until well incorporated throughout the batter.
Pour batter into loaf pan and level out the top.
Place into the preheated oven for about 45 minutes. Inserting a toothpick in the center which comes out clean should verify its baking is complete. Remove from oven to a cooling rack for about 10 minutes.
Insert an offset spatula or a knife to loosen cake from the sides of the pan. Invert and tap out the cake; place it upright on the cooling rack to continue to cool.
Slice once cooled. Serve with fresh fruit for a delightful treat!