You need to make a sugar solution and sterilize it (usually by boiling), let it cool, then pitch yeast into it and let it go. High krausen is the point when beer fermentation is in high gear and there is a large "head" on the surface of what is being fermented, that "head" is called krausen. For your starter you'll need to let it sit until you see good signs of fermentation.
For beer we usually use malt extract for the sugar in the yeast starter, you could use plain white sugar or some light honey so as not to mess too much with the flavors of the Dew. For my smaller starters I usually pour my boiled and cooled solution into a 1 qt glass milk jar with a stopper and airlock and then pitch the yeast (don't forget to aerate, and use a sanitized funnel), easy to store for a couple days while the yeast gets itself going.
If started champagne yeast doesn't get this thing going I doubt anything will, besides maybe a really hardy strain of brettanomyces...