If you use these proportions your semi sweet ganache pipes beautifully and has texture of truffles, but must refrigerate for at least 1 hour before piping
8 oz (240ml) cream
1 tbls butter (optional but makes it stay really shiny even after refrigerating)
1 oz sugar
12 oz (340 g)chocolate
Footnote
White chocolate use nearly double the chocolate to cream
240 ml cream
455 g white chocolate
Break chocolate into 1/2 oz pieces and place in stainless steel bowl
Heat cream, butter and sugar to boiling. Pour over chocolate and let stand 5 minutes. Stir from center out until smooth. After refrigerating 1 hour then fill your piping bag
Or use to ice your cake by pouring or spreading (allow to cool to room temp first)
Source:
Contributed by: cheftaz on Thursday, February 09. 2006 at 20:32:25