This vanilla clementine bread came out awesome, it is definitely more of a bread than a cake, but can easily be served for dessert, and goes great with coffee.
Preheat the oven to 350 F (175 C) and grease a regular sized loaf pan.
Remove most of the zest from about 4 clementines, so you have about 1 tablespoon of zest.
In a large bowl, beat the zest, butter, 1 cup of the sugar and the vanilla seeds until well combined, about 2 - 3 minutes, then beat in the eggs, one at a time and set aside..
Juice the zested clementines, and about 4 others, enough to make ¾ cup of juice, and set aside, reserving 2 clementines.
In a small bowl, mix ¼ cup of the juice, the cream and vanilla extract together, and set aside.
In a third bowl, whisk together the flour, baking powder, baking soda and salt, and set aside.
Use your mixer, and beat the flour mixture into the butter mixture, alternating with the cream/juice mixture, starting and ending with the flour.
Peel your remaining two clementines, remove all the pith, slice each segment down it's back to halve it, then across it's middle, so each slice is in quarters - discard any seeds.
Gently fold the clementine pieces in the batter, and then pour it into the prepared pan.
Cook for about 1 hour, or until a toothpick test comes out clean.
While the bread is cooking, prepare the glaze by bringing the remaining ½ cup of juice and ½ cup of sugar to a boil in a small pan, stirring constantly. When the mixture boils, reduce the heat and simmer for about 5 minutes, then remove from heat.
When the bread is done, remove it from the oven, poke the surface all over with a skewer and brush generously with the glaze.
Allow the cake to cool for about 20 minutes in the pan, then remove it and put it on a rack to cool completely before glazing the bread again, this time including the sides.