Daging Babi Bawang Perancis

Bahan-bahan (4 porsi)

• 4 daging babi, (tebal 1 inci)
• ½ cup mentega
• 2 bawang kuning
• 2 tablespoons all-purpose flour
• 1 cup kaldu sapi
• 2 teaspoons saus Worcestershire
• 2 teaspoons timi segar
• 1 teaspoon rosemary segar
• 2 cloves garlic, (minced)
• garam dan merica secukupnya
• 4 slices keju Swiss
• 4 slices keju gruyere