Caramel Apple Upside Down Cake

I'm back with another recipe, a delicious Caramel Apple Upside Down Cake! I hope you like it :-)
For a more detailed description of this recipe, check out the blogpost: https://www.callmecupcake.se/2020/09/...
If you make this cake, make sure to use flaky salt and not table salt, which would make it veeery salty!