Meat Loaf - cooking recipe

Ingredients

2 to 2 1/2 lb. ground round or hamburger
1 c. rolled oats*
2 beaten eggs
1/2 c. chopped onion
1 or 2 tsp. salt
1/2 tsp. pepper
2 Tbsp. ketchup
1 Tbsp. mustard
2 Tbsp. brown sugar
3 drops vinegar

Preparation

*I prefer regular oats, but instant will do.