serves 6–8; adapted from "Garbanzo and Kidney Bean Salad" by Romney Steele in My Nepenthe
Add to a large bowl: vinegar, red onion, green onions/chives/herbs, garlic mashed with salt, sugar, and black pepper.
Blanch green beans in a pot of boiling salted water for a minute or two, until crisp tender. Immediately transfer to a bowl of ice water to stop the cooking. Remove from ice bath and dry on a clean kitchen towel. Add to bowl.
Add the beans to the bowl. Drizzle with olive oil and combine gently. Let stand for at least an hour for flavors to coalesce. Refrigerate any leftovers. (Olive oil will harden when refrigerated, but don't fret. A few minutes at room temperature and it will return to its liquid self.)