In a large mixing bowl, combine the ground meat, grated onion, minced garlic, breadcrumbs, egg, and spices. Mix gently until just combined and let rest for about 10 minutes.

With damp hands, shape the meat mixture into small balls (about 1 inch in diameter) and cook in a lightly oiled skillet over medium heat for 8–10 minutes until golden brown and cooked through.

In another bowl, whisk together plain yogurt, minced garlic, and a pinch of salt. Set aside.

Melt butter in a small saucepan over medium-low heat and stir in the paprika, toasting for about 1 minute until fragrant.

Spread a layer of yogurt sauce on a serving plate, place the warm meatballs on top, and drizzle with spiced butter.

Garnish with chopped parsley, mint, or a sprinkle of sumac. Serve immediately.