Polish Egg Salad

Ingredients (7)

• + 1 (8 ounce) package cream cheese, softened add to pantry
• + 1 tablespoon butter, softened, or more to taste add to pantry
• + 4 hard-boiled eggs, chopped add to pantry
• + 1 small onion, chopped add to pantry
• + salt and ground black pepper to taste add to pantry
• + salt and ground black pepper to taste add to pantry
• ✓ 1 tablespoon chopped fresh parsley, or to taste