Preheat oven to 350 degrees. Make cake: Butter and flour a 12-cup Bundt cake pan. In a medium bowl, whisk together flour, baking soda, and salt.
In a large bowl, using an electric mixer, beat butter and granulated sugar on medium-high until light and fluffy, 5 minutes. Add eggs, one at a time, beating well after each addition. Beat in tangerine zest and juice and liqueur. With mixer on low, add flour mixture in three additions, alternating with two additions yogurt, and beat to combine; beat in vanilla. Transfer batter to pan, smooth top, and firmly tap pan on a flat surface to remove air bubbles.
Bake until a toothpick inserted in center of cake comes out clean, 55 to 60 minutes. Let cool in pan on a wire rack, 30 minutes. Invert cake onto rack set in a rimmed baking sheet and let cool completely. (With a serrated knife, trim cake to sit flat, if necessary.)
Make glaze: Whisk together confectioners' sugar and tangerine juice until smooth. Spoon glaze evenly over cake and let set 1 hour.
The Juicy Details: Thin skins make tangerines a breeze to squeeze by hand. For smooth, pulp-free juice (great in this glaze), strain juice through a fine-mesh sieve before using.
This is one of the best cakes I have every made. It was moist, had a great orange taste and it was light. The recipe was easy to follow and the cake cooked in 55 minutes. It took almost one pound of confectinoers' sugar to get the glaze to correct thickness using 3 tablespoons of tangerine juice and you needed every bit of the glaze. I would highly recommend making this cake. You will not be disappointed.