Well I pulled a newbie mistake and replaced outlets without marking the wires. I broke the switch which powers the outlet for my disposal.

The switch appears to be an end switch, both wires are black. Behind the receptacle, there was a white and black tied together which I untied and a white and black connected the single prong outlet. I can't get a clean reading from my tester on this plug. Depending on the combination of wires I tie together, I get open neutral, open ground or dead plug.

I know there must be some correct approach to identifying which wires to tie and which to connect to the switch and outlet. Please help!