Curry Doria (Rice Gratin)

Bahan-bahan (4 porsi)

• ½ onion
• 1 rib celery
• 1 carrot
• 2 cloves garlic
• 1 Tbsp extra virgin olive oil
• 1 bay leaf
• 6 oz ground beef
• 6 oz ground pork
• Diamond Crystal kosher salt
• freshly ground black pepper
• 1 Tbsp Japanese curry powder
• 1½ cups chicken or vegetable stock
• 2 Tbsp tonkatsu sauce ((or make my Homemade Tonkatsu Sauce))
• 2 Tbsp ketchup
• 2 Tbsp unsalted butter ((divided))
• ½ cup Mozzarella cheese ((2 oz; or use another cheese like Gruyere or Parmesan))
• ½ cup Romano cheese ((2 oz; or use another cheese like Gruyere or Parmesan))
• 2 Tbsp panko (Japanese breadcrumbs)
• parsley ((chopped, for garnish))
• 3 rice cooker cups uncooked Japanese short-grain white rice
• 600 ml water