Easy Creamy Scalloped Potatoes in Oven

Ingredients

• 2 pounds starchy potatoes, peeled and thinly sliced
• 1 medium onion, finely chopped
• 3 cups heavy cream
• 2 cups shredded sharp cheddar cheese
• 2 cloves garlic, minced
• 1 teaspoon salt
• ½ teaspoon black pepper
• ½ teaspoon smoked paprika (optional)
• ¼ cup grated Parmesan cheese
• Fresh parsley or chives for garnish (optional)