George Chiala Farms - George's Recipe of the Month.

Ingredients

• 2 tbsp olive oil
• 1 onion, thinly sliced
• 3 garlic cloves, thinly sliced
• 1 butternut pumpkin, cut into 1-inch cubes
• 4 cups chicken stock
• 6 ounces fontina, coarsely grated
• 3 ounces parmesan, coarsely grated
• 2 tablespoons mascarpone
• 1 tablespoon finely chopped sage
• 1 tablespoon finely chopped rosemary
• 1 egg yolk
• 4 thin slices day-old rye bread