adobe photoshop - How can I outline this image with a thick black border

I would like to turn this image into just a simple black outline.

Like this simple hand drawn example below, but more precise.

Answer

1. Choose magic wand tool set options to:
   
   
   
   • 1, levels Tolerance
   
   
   • Anti-alias on
   
   
   
   


2. Click on background white


3. Holding shift down click inside handle, to add to the existing selection.



4. Invert selection shift+ctrl+I


5. Make a new adjustment layer
   
   
   
   • Solid color, white
   
   
   
   


6. Apply a layer style of stroke

Done. Your values may be different as scale might change things.

Image 1: Results of steps.

PS: you can also turn the selection into paths. That may be marginally better for low res images as it smooths edges.

Image 2: Instead of fill, the selection was turned to path with 1,5 px fidelity and then stroked with a brush.