Just wanted to quickly mention the fantastic housemade black sesame sorbet ($3.75) my DC and I had at Oga's in Natick earlier this week. It was my first time there and while the appetizers and sashimi we tried were fresh and inventive, it was the dessert that left the most lasting impression. The flavor is like halva in sorbet form. Really luscious and rich from all the seed oil but with a light, refreshing mouth-feel, since it's water-based. Visually, the sorbet is a chic, charcoal color and comes in a dark, handmade pottery-type bowl. (I can't help but think it would make for an elegant and unexpected finale to a fancy dinner party, if one was able to procure it by the pint.) Service, btw, was the friendliest and most efficient I've had at a mid-range restaurant in a long time.