Soak the cashews in boiling water for 20 minutes to soften. While they're soaking, chop the onion, garlic and sun dried tomatoes,and put them in a frying pan with ~1tbsp olive oil. Fry over medium heat for about 10 minutes or until onions soften and turn golden brown.Drain the cashews and put them in a blender or food processor with the white wine, nutritional yeast, and salt. Blend until the mixture is very smooth and has the consistency of a thick hummus.Spoon the mixture into a small bowl and stir in the onion/garlic/tomato mixture. Taste and add more salt if needed.Freeze for 20-30 minutes to make it easier to roll into a ball.While the cashew mixture is freezing, mix the topping ingredients in a small cup or bowl and then pour them onto a plate or other flat surface and spread them out evenly.Take the cashew mixture out of the freezer and use your hands to roll it into a ball (or log!).Roll the cheese ball in the poppy seed mixture until it's fully coated. You can eat it right away or wrap it in saran wrap and refrigerate it for an hour or more to set (then it will be a bit firmer)