Delish! I recommend adding only half the buttermilk, pulsing/turning on the processor, then checking the consistency. I thought it might be too wet for my liking, and was correct. I only used 3/4 of the buttermilk the recipe calls for.
After processing, I added the puree to a gratin dish, drizzled with the reserved olive oil and put under the broiler until it developed a nice crust. Then plated, snipping fresh chives over the top of each serving.
Next time I think I'll add a panko/parmesan/olive oil topping before broiling to make it even more delectable.
Highly recommend this recipe (especially for vegetarians, and it could easily be made vegan)!!!