Corned Beef and Swiss Dip - Chefwiz

Ingredients

• 1 tbsp of vegetable oil
• ¾ of a medium onion (, chopped)
• 2 packages (8 ounces each) of softened cream cheese
• 1 carton (8 ounces) of sour cream
• 3 packages (2.5 ounces each) of diced deli-sliced corned beef (such as Buddig®)
• 1 ½ cups of mayonnaise
• 1 cup of shredded Swiss cheese
• 1 tsp of garlic powder
• 1 loaf (1 pound) of unsliced Italian bread