Bob's Burgers, Garden of Eden Burger. Bob's Burgers cookbook episode 4.

Ingredients: 1 cup plain yogurt, 1 teaspoon cinnamon, 1/4 teaspoon nutmeg, 1/4 teaspoon ginger, 1 tablespoon maple syrup, 1 tablespoon butter, 1 Vidalia onion halved and sliced, 1 green apple, 1 pounds ground ground beef, salt and pepper, 4 buns. Steps: 1. Mix the yogurt, cinnamon, ginger, nutmeg and maple syrup together in a small bowl with a pinch of salt. Chill until everything else is done. 2. Melt the butter in a wide frying pan over medium-low heat. Add the sliced onion and stir to coat. Cook over fairly low heat, stirring occasionally, until the onion is very soft and a deep, sticky golden-brown, about 20 to 30 minutes. 3. Core your apple. Slice into thin rounds-you want 2 per burger. 4. Form 4 patties, season both sides with salt and pepper. Cook as you normally would. Alongside your skillet, heat your aple slices for 4 or 5 minutes, turning once. 5. Build your burger: Bun, burger, caramelized onions, apple slices, lots of sauce, top bun. Enjoy your fall from grace.