Pecan Boniato Crusted Fish with Jalapeno Cream Sauce

Name: Pecan Boniato Crusted Fish with Jalapeno Cream Sauce
Ingredients: 1 1/2 cups pecans; 1 tablespoon brown sugar; 1 cup panko breadcrumbs; 2 medium size boniatos (or sweet potatoes), cleaned anddiced; 4 fillets grouper or similar fish; 1 cup all-purpose flour; 2 eggs, beaten; 2 tablespoons olive oil or unsalted butter; 1/4 cup diced onions; 1 clove garlic, minced; 1 jalapeno, diced; 1/2 green bell pepper, diced; 2 tablespoons extra-virgin olive oil; 1/4 cup white wine; 1 cup heavy cream; 2 cups milk; 2 tablespoons unsalted butter; 2 tablespoons pickled jalapeno juice from the jar; Pinch salt; Pinch ground black pepper