Slightly sweet and slightly spicy, these nuts are easy to prepare and make a satisfying snack when guests gather for dinner. You can toast the nuts up to 3 days in advance, but don't toss with the rosemary leaves. Let cool, then place in an airtight container and store at room temperature. Just before serving, wrap the nuts in aluminum foil and warm in a 350deg.F oven. Toss with the rosemary leaves and serve.