Smash 1 garlic clove and sprinkle with kosher salt, then mash and smear into a paste with the flat side of a knife. Mix with 1 1/4 cups low-fat plain Greek yogurt and thin with water. Drizzle with olive oil and sprinkle with salt, pepper, smoked paprika and cumin. Serve with the couscous or add a dollop to the pot-au-feu.
Photograph by Marcus Nilsson