If the coconut crabs are live, you may need to humanely kill them before cooking. Remove the shells, clean the crabs, and cut them into manageable pieces.
Heat the vegetable oil in a large skillet or wok over medium heat.
Add the minced garlic and chopped onion to the skillet. Sauté for about 2-3 minutes until fragrant and translucent.
Add the crab pieces to the skillet. Cook for about 5-7 minutes, turning occasionally, until they start to turn red and are partially cooked.
Stir in the chopped bell pepper and cook for another 2 minutes.
Pour in the coconut milk, soy sauce, and fish sauce. Stir well to combine.
Add ground black pepper and paprika. Mix thoroughly.
Reduce heat to low, cover, and let the crabs simmer in the sauce for about 15-20 minutes, or until fully cooked and tender.
Stir in the fresh lime juice for a touch of acidity.
Garnish with fresh cilantro and serve hot with rice or bread.
Enjoy your meal!