Makes 1-8" cake
Fire up your Cru oven.
In the bowl of a stand mixer with a paddle attachment, or a medium mixing bowl, add the butter and sugar and cream on medium high speed for about 5 minutes, until fluffy.
Then add eggs one at a time, making sure each is fully incorporated before adding the next one.
Add the vanilla and baking powder, mixing well.
Add all of the self-rising flour at once, then very slowly turn the mixer on to low and mix until the flour is just incorporated - do not over mix.
Pour batter (it will be thick) into a greased 8” cast-iron and spread evenly. Lay the plum slices on top of the batter.
You want your Cru oven to be at about 400°F - 450°F for baking the cake.
Place the pan in the oven, the cover. Rotate every 7-8 minutes and bake for 30 minutes or until a toothpick pricked in the center comes out clean.