Roast Beef Poor Boy from Louisiana Eats!: The People, the Food, and Their Stories by Poppy Tooker

Ingredients

• 2 loaves poor boy bread
• ½ cup mayonnaise, for serving
• 3 tbsp. vegetable oil
• 1 qt. beef stock
• 1 16-oz. jar sliced dill pickles, for serving
• Hot sauce to taste
• 1 head iceberg lettuce, shredded, for serving
• 3-4 thinly sliced tomatoes, for serving
• Salt
• pepper
• 1 3-4-lb. beef chuck roast
• 2 tbsp. flat-leaf parsley
• 1 medium onion, cut into large chunks
• 3 garlic cloves