Remove butter and eggs from the refrigerator in advance. They should be at room temperature. Rinse the mint under cold water. Prepare your mixer.
Make biscuit dough. Break the eggs into a deep container and beat well with a mixer. Add boiling water and continue stirring. Add sugar. Beat until the egg mass doubles in size. Add flour and starch, as well as baking powder. Stir gently. Place baking paper on a baking sheet and spread the dough over the surface. Place in the oven preheated to 180℃ for 10 minutes. Roll the still hot biscuit into a roll and leave to cool.
Prepare the filling. In a bowl, beat the cream until soft peaks form. Add powdered sugar and continue beating. Add curd cheese to them and mix until smooth.
Make the glaze. In a thick-bottomed saucepan, combine sour cream, cocoa, sugar and butter. Place on medium heat. Stirring occasionally, bring the glaze until smooth. Remove from stove and cool.
Assemble the roll. Unroll the dough. Coat the surface well with the creamy curd cream and roll it into a tight sausage. Drizzle glaze over roll. Place in the refrigerator for 120 minutes.
Place the finished cheese roll on a serving plate and cut into portions. Garnish with a sprig of mint.