<Table> Portuguese sweet bread <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Alternative names </Th> <Td> pão doce, massa sovada </Td> </Tr> <Tr> <Th> Type </Th> <Td> bread </Td> </Tr> <Tr> <Th> Course </Th> <Td> dessert </Td> </Tr> <Tr> <Th> Place of origin </Th> <Td> Portugal </Td> </Tr> <Tr> <Th> Associated national cuisine </Th> <Td> Portuguese cuisine </Td> </Tr> <Tr> <Th> Main ingredients </Th> <Td> milk, sugar, flour, eggs, butter, yeast, salt </Td> </Tr> <Tr> <Td_colspan="2"> Cookbook: Portuguese sweet bread Media: Portuguese sweet bread </Td> </Tr> </Table> <Tr> <Th> Alternative names </Th> <Td> pão doce, massa sovada </Td> </Tr> <Tr> <Th> Type </Th> <Td> bread </Td> </Tr> <Tr> <Th> Course </Th> <Td> dessert </Td> </Tr>

Why do they put an egg in sweet bread