Mix the yeast and milk in
a small bowl.
Let stand
for 15
minutes,
until foamy.
Sift the flour and salt into a
large bowl and make a well in the center. Mix in the
yeast mixture, eggs, sugar, butter, and pepper to make a
soft, elastic dough.
Add the Pecorino and peas
and knead well. Butter a 10-inch (26-cm) ring mold.
Place the dough in in
the ring mold. Let rise in a warm place for about 1
hour.
Preheat the oven to 375°F/190°C/gas
5. Bake
for
25-35 minutes, or until well risen and golden brown.
Remove from the
oven and let cool for 5 minutes before turning out onto
a rack. Slice and serve
while still warm.