For an extra layer of flavor, consider roasting the garlic before adding it to the cashew mixture. This will impart a sweeter, more mellow garlic flavor. Feel free to experiment with different types of tomatoes. Yellow, orange, and even green heirloom varieties will add visual appeal and unique flavor notes. If you prefer a milder flavor, remove the seeds and membranes from the jalapeno before blending or slicing. The tart can be served warm, at room temperature, or even cold. It's perfect for a light lunch, a summer appetizer, or a sophisticated snack.