Preheat oven to 350°. Grease a loaf pan and dust with flour.

In a medium bowl, whisk together flour, baking powder, salt and poppyseeds; set aside.

In a large bowl, mix together Greek yogurt, sugar, eggs, lemon zest, vanilla and vegetable oil. Add in dry ingredients until mixed.

Pour batter into loaf pan and bake for about 1 hour until a toothpick inserted into the centre comes out clean.

Let cool and while loaf is cooling, make syrup.

In a small saucepan over medium heat, stir together tea, lemon juice and sugar until dissolved. Use a toothpick to poke holes in the top and sides of the loaf and brush with the hot syrup. Let sit for 5 minutes to let the loaf soak in the syrup and then baste again.

Let cool completely. Slice and serve.