One way to bake sea scallops is to top the scallops with butter and season with salt, pepper and finely chopped herbs. Bake the scallops in a buttered baking dish at 350 F for about 25 minutes. Another option is to top each scallop with seasoned breadcrumbs before they're done.
To prepare the scallops for baking, first pull off the fibrous side muscles if they are still attached. Pat dry the sea scallops to remove excess moisture, then place them inside of a buttered baking dish in a single layer. Season the sea scallops to taste with salt, pepper and herbs, then place a pat of butter on top of each scallop. Place the scallops in the oven at 350 F for five minutes, until the butter on top of the scallops has melted, then move the scallops around to ensure they are all fully coated with butter. Continue baking for another 20 minutes, or until the outside of each scallop is fully opaque.
Many baked scallop recipes include a seasoned breadcrumb topping. To make the topping, mix 3/4 cup traditional or panko bread crumbs in a bowl with 2 tablespoons melted butter, 1 1/2 teaspoons olive oil and seasonings to taste, such as salt, pepper, minced garlic, cayenne pepper and lemon juice. When the scallops are almost done, top each one with the breadcrumb mixture, and turn the oven to broil. Broil the scallops until the topping is golden brown.
Another method involves bacon. Wrap each scallop in a section of bacon and secure with a toothpick. Add seasonings, such as salt and pepper, to taste. Preheat the broiler in the oven and line the scallops on a baking sheet. Bake for roughly 20 minutes until both bacon and scallops are fully cooked. Halfway through cooking, flip the scallops to ensure even cooking.
Scallops that are cooked through all the way are firm to the touch and opaque in color. They also have an internal temperature of 120 degrees Fahrenheit.