Combine flour, salt & granulated sugar.
Combine eggs, buttermilk & vanilla extract in a separate bowl.
Bring cola, butter, oil & cocoa powder to a boil.
Pour over flour mixture & beat until smooth.
Add buttermilk mixture & baking soda. Mix until combined.
Pour into a pan, & bake 35-45 min. Let cool.
Cook butter, cola & cocoa powder over low-med heat until butter melts.
Remove from heat & whisk in powdered sugar.
Frost, Slice & Enjoy!
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