You can use a stand mixer with a dough hook or opt to make this cake dough by hand (I often do).
In a large bowl (or bowl of a stand mixer), combine the flour and the sugar with a whisk to break up any lumps.
4 cups flour (I use a combo of unbleached all-purpose flour and Spelt flour, but feel free to use all-purpose flour only), 2 cups coconut sugar (you can use pure cane sugar, if preferred)
Add the grated lemon zest, lemon juice, rehydrated yeast, beaten eggs, and butter.
Grated zest of 1 large lemon or equivalent to 2 tablespoons, 2 tablespoons lemon juice, 1 packet active dry yeast, rehydrated according to package instructions, 4 large eggs at room temperature, 9 ounces butter at room temperature
Use your hands to combine the ingredients, ensuring no chunks of butter are left. If using a stand mixer, let the dough hook mix and knead your dough on a low to medium setting.
Don't over-knead it, just enough to work in the butter.
Work in the pieces of fig and walnuts. If done by hand, I simply stir them in using a wooden spoon.
15 dried chopped figs, ½ cup chopped walnuts
Cover the bowl with a clean kitchen towel and let the dough rest for about 1 hour.
Close to the end of that one hour, preheat the oven to 350 degrees F/ 180 degrees C.
Butter the springform pan, then shake in a bit of flour (coating all sides) and tap out the excess.
Use a spatula to spread the dough evenly in the prepared pan.
Bake in the center of the oven for 50 to 60 minutes, or until a toothpick inserted in the middle of the cake comes out clean with no wet crumbs clinging to it.
Allow the cake to cool completely before removing it from the pan.
Serve as is or top with sifted powder sugar for a more festive look or extra fresh sliced figs.