Slow Cooker Spicy Pork Ribs (Maeun Dwaeji Galbijjim)

• 3 pounds pork baby back ribs
• 1 medium onion cut into big chunks
• 1 large potato cut into big chunks
• 1 large carrot, cut into chunks (about an inch)
• 2 scallions cut into big chunks
• 6 to 7 garlic cloves roughly chopped
• 1-1/2 inch ginger thinly sliced

Sauce

• 3 tablespoons Gochugaru 고추가루, Korean red chili pepper flakes
• 2 tablespoons sugar
• 1 teaspoon salt
• ¼ teaspoon black pepper
• 3 tablespoons soy sauce
• 3 tablespoons rice wine or mirin
• 2 tablespoons honey
• 2 tablespoons Gochujang 고추장, Korean red chili pepper paste
• 1 teaspoon doenjang 된장, Korean fermented soybean paste
• 1/2 apple grated
• 1 tablespoon sesame oil
• 1 teaspoon sesame seeds