Five-Ingredient Chocolate Cheesecake Cups

Bahan-bahan (12 porsi)

• 1 oz 1 square semisweet baking chocolate, plus 1/8 oz shavings (Bakers)
• 4 oz Philly 1/3 less fat cream cheese (softened room temperature)
• 1/4 cup sugar
• 1/4 cup light sour cream
• 1 large egg (room temperature)