Rub the strawberries through a blender, strain through a fine sieve.
It turns out mashed juice.
Combine with sugar and put on the stove.
Cook until a medium ball forms (drop strawberry syrup into cold water, the drops should gather into a ball and not spread and at the same time should remain soft, plastic) A prerequisite for the preparation of syrup. If you do not boil marshmallows, it will spread, if you digest the mass, it will become hard, rubbery, rough.
When the syrup is almost ready, whisk the cooled proteins so that they increase in volume by 6 times, add citric acid to strengthen the protein structure.
Pour the hot syrup into the whites, continuing to beat until the mass becomes white with a creamy pink tinge.
Add soaked and dissolved gelatin.
Continue to whisk, almost until completely cooled, until the mass becomes thick, firm.
Put the marshmallows on the table with a pastry bag and a nozzle.