Combine chocolate, rum, 1/4 cup water, and the vanilla in a heat-proof bowl. Set it over a pan of simmering water just until the chocolate melts. Cool to room temperature. Whisk butter until combined.

This savory bread pudding, made with biscuits, was contributed by chef Chris Lusk at Cafe Adelaide to 'The P&J Oyster Cookbook,' by the Sunseri family and Kit Wohl ($35, Pelilcan Publishing) This ...