Creating Cod & Potatoes in Rosemary Cream Sauce is straightforward if you follow these simple steps:

1. Prepare the Potatoes: In a pot of salted boiling water, add the diced potatoes. Cook until tender, about 10-12 minutes. Drain and set aside.
2. Cook Onion and Garlic: In a large skillet, heat the olive oil and butter over medium heat. Add the chopped onion and sauté until translucent, about 3-4 minutes. Stir in the minced garlic and cook for an additional minute.
3. Create the Cream Sauce: Pour in the heavy cream and vegetable broth into the skillet. Stir well to combine. Bring to a gentle simmer.
4. Add Rosemary and Season: Add the chopped rosemary to the sauce. Season with salt and pepper to taste. Let the sauce simmer for about 5-7 minutes until it thickens slightly.
5. Cook the Cod: Gently place the cod fillets into the skillet, spooning some of the sauce over the top. Cover and cook for 5-6 minutes or until the cod is cooked through and flakes easily with a fork.
6. Combine Potatoes and Cod: Add the cooked potatoes to the skillet and gently toss them in the sauce, being careful not to break apart the cod.
7. Serve: Transfer the dish to a serving platter, garnishing with additional rosemary if desired. Serve with lemon wedges on the side for a refreshing twist.

These easy steps will guide you in creating this comforting dish effortlessly.