To make Crunchy Corn Relish: Melt butter in a large skillet. Add water and corn; cover and simmer for 4 minutes. Stir in red pepper and cook for 1 additional minute. Add green onion, half-and-half, and salt and pepper to taste.
To make Southern Cornmeal Crusted Catfish: Stir together buttermilk or yogurt and hot sauce; brush on catfish and allow to marinate for 10 minutes. Coat catfish lightly with cornmeal and sprinkle with salt and pepper to taste.
Melt butter and olive oil in a nonstick skillet over medium high heat. When skillet is hot, sauté catfish about 3 minutes on each side, turning only once, until golden and crisp. Serve with relish. Makes 4 servings.