“Yay! So happy to find this recipe. My sister in law has made it a few times and I loveddddd it”

Preheat Oven: Preheat your oven to 350°F (175°C). Grease a 9-inch pie dish or oven-safe baking dish.
Combine Ingredients: In a medium bowl, combine softened cream cheese and mayonnaise until smooth. Stir in shredded Swiss cheese, grated Parmesan cheese, chopped onion, garlic powder, and black pepper. Mix until well combined.
Bake: Spread the mixture into the prepared dish. Sprinkle with paprika, if desired. Bake for 25-30 minutes, or until bubbly and golden brown.
Serve: Let cool slightly before serving. Serve warm with crackers, bread, or vegetables.