How to separate two bowls stuck together?

[LoveKnowsNoBounds]

I've tried water then oil and trying to push it out. Before I throw it out, any ideas? I love both of the bowls

[Calluna]

Fill the inside bowl with cold water and place the outside bowl in warm water.

[Rowellen]

Fill the inside bowl with cold water and place the outside bowl in warm water.

Exactly what I was thinking. GL

[Phteven]

Tap them on a benchtop.

[Floweryfields]

Really soapy water?

[LimeSlice]

Up turn them in the sink and run hot water over them.