shoecare question - oil stain

last night some kind of oil or grease got on my cavalier whiskey leather shoes (I think it was burger grease, but idk since I didn't notice when it happened)—avg. american problem—anyway, I dabbed the spots with a bit of water and waited ~12hrs to see if it had faded and they have not, and I'm at a loss for what would be the next step I should try. I also don't currently have saddle soap or leather cleaning products, so I'd have to order them, but if I need to, any recommendations? Would baby powder or similar work without drying out the leather? I appreciate any insights that could be shared—even if it's that I'm out of luck