I would blanch the kale and then sweat that off in duck fat, &amp;lt;i&amp;gt;bake the sweet potato,&amp;lt;/i&amp;gt; &amp;lt;i&amp;gt;and do a really nice&amp;lt;/i&amp;gt; &amp;lt;i&amp;gt;caramelized rhubarb&amp;lt;/i&amp;gt; with aged balsamic vinegar sauce. 