Mix four, salt, and baking powder in a bowl and stir and set aside.
With the stand mixer or hand mixer whip the 4 eggs and sugar for 4 minutes.
Add in the vanilla and oil and then add in 1/3 of the flour mix followed by half of the milk.
Then another 1/3 of the flour mix and the last half of the milk and finally the last 1/3 of the flour mix.
Pour half of the batter into a lightly greased casserole dish and spread evenly.
Stir in 1 Tablespoon of milk and 1 Tablespoon of cocoa powder and mix until well combined.
Pour the chocolate cake mix over the vanilla cake mix.
Cover the cake mix layers with the pitted and drained cherries and bake at 350 deg. F for 25 - 30 minutes.
Remove from the oven and cool completely.