In a large bowl combine sugar, lemon and tangerine zest, and olive oil.Mix with a spatula.
Add eggs, and vanilla.Stir together until smooth.
In a separate bowl add your flour, baking soda, baking powder, and salt.Stir together gently.Then add slowly into sugar mixture, little by little while stirring.Continue mixing until dough is mixed.
Scoop the dough with a small scoop.Roll each scoop into a ball.
Roll the balls in sugar.After coating each ball place them several inches apart on a non stick sheet for baking.(they will spread- the bigger the ball the larger the spread)
If you roll your balls in Tbsp.size bake 11- 13 minutes.Ours used a small scoop, and were larger we baked them about 15-20 minutes.Checking every 5 minutes until done.They will be puffed, and cracked.We pulled ours just before they turned light brown.