
Dilute agar-agar with water and leave to swell.

Prepare banana puree. Cover peeled bananas with 150 g of sugar and mash with a fork or blend. Transfer the puree to a saucepan. Put the mixture on the fire, bring to a boil and cook for 3-4 minutes, stirring constantly. Rub the resulting mass through a sieve, let cool. Cool in the freezer for 7-10 minutes.

Prepare the syrup. Put the water with agar-agar on the fire, bring to a boil. Pour in 210 g of sugar, stir. Boil for 5 minutes, stirring constantly. The syrup should be thick. Remove from the fire, let cool slightly.

Prepare the marshmallow mass. Separate the yolk from the white. In a large bowl, beat the white and banana puree with a mixer at medium speed until fluffy.

Prepare the marshmallows. Pour the syrup into the thick banana mixture in a thin stream and continue beating with a mixer for 2 minutes at high speed. Fill a pastry bag with the mixture and place the marshmallow halves on a flat plate covered with parchment. Leave to harden for 24 hours at room temperature. After that, sprinkle the halves with powdered sugar and connect 2 halves together, they stick together well.