1 (3-4 lb.) trout, white fish or bass
2 tbsp. chopped onion
1 tbsp. fat
1 c. ketchup
2 tbsp. vinegar
1/4 c. lemon juice
3 tbsp. Worcestershire sauce
2 tbsp. brown sugar
1/2 tsp. salt
Dash pepper

Place fish in greased shallow pan; sprinkle with salt. Lightly brown onion in fat; add remaining ingredients. Simmer 5 minutes and pour over fish. Bake in oven at 425 degrees for 35-40 minutes.