fish Baked Flounder With Lemon and Butter

This flavorful baked fish flounder (or sole) is baked with seasoned lemon butter. This is a very simple recipe, however, it does not skimp on taste. Serve it with the non-compulsory garlic aioli (beneath) or serve the fish with a prepared tartar sauce or pesto.

Baked Flounder With Lemon and Butter
Baked Flounder With Lemon and Butter


  • 1 1/2 pounds flounder fillets (or sole)
  • 1 teaspoon salt
  • 1/8 teaspoon black pepper
  • 4 tablespoons butter (melted)
  • 2 tablespoons fresh lemon juice
  • 2 teaspoons onion (finely minced)
  • 1 teaspoon paprika (as needed)
  • Garnish: fresh parsley (finely chopped)
  • Garnish: lemon wedges (for serving)
  • Optional Garlic Aioli 
  • 2 medium cloves garlic
  • 1/2 cup mayonnaise
  • 2 tablespoons olive oil
  • 1 tablespoon fresh lemon juice
  • Salt (to taste)

Steps to Make It

1 Gather the ingredients.

2 Butter a shallow baking dish. Preheat the oven to 325 F/165 C/Gas 3.

3 Cut the flounder fillets into serving-size portions. 
4 Arrange the pieces in the prepared baking dish and sprinkle the fish with 1 teaspoon of salt and the freshly ground black pepper.
5 In a small bowl or measuring cup, combine melted butter, 2 tablespoons of lemon juice and minced onion.
6 Pour the lemon-butter mixture over fish.
7 Then, sprinkle the fish with paprika.
8 Bake in the preheated oven for about 20 to 25 minutes or until fish is cooked through and flakes easily with a fork.
9 Garnish with chopped parsley and lemon wedges and serve with garlic aioli (below) if desired.
10 Serve the baked flounder with hot cooked rice or baked potatoes, along with steamed vegetables or a salad.

Garlic Aioli

1 Gather the ingredients.

2 Press the garlic into a small bowl and mash well with a fork. Or mash it with a mortar and pestle.
3 Add the mayonnaise, olive oil, and lemon juice and whisk to blend thoroughly.
4 Season with salt to taste.
5 Cover and chill until serving time.

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