for fries
mash potato 500 grams
cornstarch 110
egg white 2 pcs
salt and pepper to taste
for brioche bread
all purpose flour 228 grams
yeast. 7 grams
sugar 20 grams
milk 130 grams
butter 40 grams
improver 2 grams
salt 3 grams
for Patty..
beef ground 500 grams
onion 100 grams
egg yolk 2 grams
cornstarch 15 grams
salt and pepper
5 grams of lemon juice