Preheat oven to 350°F, lightly grease an 8" cake pan, especially the sides, and line the bottom of the pan with parchment paper.
Cut your apples into thin-ish slices. Mix together the white/brown sugar, cinnamon, and salt in a small bowl with a fork. Toss the apples and cinnamon sugar mixture together, and get them all well coated.
Arrange the coated apples evenly on the bottom of the pan, without that many spaces, and sprinkle the rest of the cinnamon sugar on top. Set aside.
Add your apple cider vinegar to a small bowl with non-dairy milk, mix a tiny bit, and set aside to curdle.
While the mixture is curdling, whisk together flour, sugar, baking soda, baking powder, salt, cinnamon, nutmeg, and cloves.
Pour in curdled milk (should be thick and lumpy), oil, and lemon zest, and whisk until it forms a batter, then switch to a spatula and stir until only a few small lumps remain.
Pour into prepared cake pan on top of apples. (Don't worry if it doesn't fill that high because it will rise a lot.) Bake for 40 minutes or until a toothpick comes out clean with a few small crumbs.
Let cool for 10+ minutes, flip out of pan, peel off parchment paper (if any apples stick scrape them back onto cake). Serve and enjoy!!!