Soak the cashews. In a medium sized heat proof bowl cover raw cashews with just boiled water. Allow to soak uncovered for 20-30 minutes or up to several hours – until pale and plump.
Caramelize the alliums. Heat olive oil over medium heat in a large skillet. Add shallots and cook, stirring every 30 seconds or so, until tender and nicely caramelized – about 7-8 minutes.