1. Preheat oven to 400°F (200°C) and roast the peaches and tomatoes on a parchment-lined tray for 12–15 minutes until soft and caramelized, drain any water let from the tomato
2. In a blender, combine roasted heirloom tomatoes, roasted peaches, honey, lemon juice, sherry vinegar, water, and salt. Blend until smooth.
3. Pass through a fine mesh sieve
4. Pour into a shallow metal hotel pan and freeze. After 1 hour, begin scraping with a fork every 30 minutes until fully froze and fluffy (~3 hours total).