INGREDIENTS
1 tbsp
Mandarin, zest
2
Eggs, large
1 1/2 cups
All-purpose flour
1/2 tsp
Baking powder
1/4 tsp
Baking soda
1 1/4 cups
Confectioners' sugar
1 cup
Granulated sugar
1 tsp
Vanilla extract, pure
1/2 cup
Olive oil
2 tbsp
Butter, unsalted
3/4 cup
Whole milk
1/2 teaspoon plus a pinch fine salt