Ingredients

• 1 tablespoon unsalted butter
• 1 leek, white and light green parts, thinly sliced
• ¼ cup white wine
• 1 cup tightly packed baby spinach leaves
• ½ cup cream cheese, divided
• 1 tablespoon balsamic vinegar
• ½ teaspoon brown sugar
• 1 teaspoon garlic cloves, chopped
• ⅛ teaspoon salt
• ⅛ teaspoon black pepper