Cape Cod Fish Chowder

Ingredients

• 1 large onion, chopped (1 c.)
• 1/2 stick butter or oleo
• 3 large potatoes, pared and sliced (4 c.)
• 2 tsp. salt
• 1/2 tsp. basil
• 1/4 tsp. pepper
• 2 c. water
• 1 (1 lb.) pkg. frozen cod or haddock fillets, partly thawed and cut into cubes
• 1 (12 or 16 oz.) can whole or cream-style corn
• 1 tall can evaporated milk