Bread bowl with mozzarella dip

Ingredients:

• 1 sourdough loaf, 20 cm in diameter.
• 2 tbsp. grated mozzarella (about 220 gr.)
• 1 cup crumbled feta (about 110 g)
• 2 tablespoons unsalted butter, diced
• 1 large egg
• 0.5 tsp red pepper flakes

Preparation:

1. Preheat oven to 200°C.
   
   Combine the mozzarella, feta, and butter in a large bowl. Trim the top 2 inches off the bread and scoop out the crumb, leaving a hollow shell for dipping. Fill the bread bowl with the cheese mixture. Place in a baking dish, cover loosely with foil, and bake for 20 minutes.
2. Remove the foil and crack an egg into the cheese mixture. Bake, uncovered, until the egg whites are almost completely set, 12-15 minutes. Then, turn the oven to broil and broil until completely set, another 1-2 minutes.
3. Remove from the oven and sprinkle with red pepper flakes. Just before serving, beat the egg yolk with a fork and stir it into the melted cheese.
4. Serve with bread crumbs or raw vegetables for dipping.