Share 'Chocolate sauce recipes'

Hi folks, I'm not sure how to search the "recipe" area on the site, as I'm new to it.  I'm looking for suggestions for recipes to create a "portable" dipping chocolate sauce. I want to have something that has a fairly high viscosity so that people can open a jar and dip anything they want in it immediately, and not have to heat it to melt. Suggestions? Thanks much! Ann