'has been making bread' is correct and usable in written English.
You can use it when you want to express that someone has been doing an ongoing activity for a certain period of time. For example: Mary has been making bread for over a month now.
The president of the Danish Bakers Associationn, Hardy Christensen, said: "We've been making bread and cakes with cinnamon for 200 years.
It was, he says, "insane - I was completely ignorant of the baking business", although he had been making bread since he was a kid.
For decades, Glendale-based Food for Life has been making Ezekiel 4 9 Bread, inspired by the list of grains in the Bible passage for which the bread is named; the bread contains wheat, barley, rye, oats, millet, corn and rice.
Each week about 36,000 pounds of donated cheese is shipped to Nardone Brothers Bakery in Wilkes-Barre, Pa., which has been making pepperoni and French-bread pizza for New York schools since 1999.
This bread has been made by hand every day at Ballymaloe House for more than 60 years – originally for the family, and then for the guests.
The once-intimidating task of preparing yeast bread has been made less risky with improved strains of yeasts and the advent of food processors and mixers with dough hooks, which eliminate hand-kneading in some recipes.
I've been making pitta bread for years, mostly following Tom Jaine's book Making Bread At Home, but have never managed to get that special texture of bought pitta.
I've been making my own bread for several years, but can only find strong white, strong brown, wholemeal and, if I'm lucky, granary flour in the supermarkets.
They have been making their special bread – which has its own geographic denomination – since probably at least the 13th century.
