Vanilla cream rolls

INGREDIENTS:

YIELD: 12 cannoncini

For the custard cream (crema pastiera):

3 egg yolks

3 tablespoons (30 gr) of all-purpose flour

1/2 cup (100 gr) of sugar

1 teaspoon of vanilla extract

8 oz (235 ml) of milk

For the cannoncini:

1 sheet of puff pastry, defrosted (about 8 oz, 225 gr)

1/4 cup (50 gr) of sugar

1 egg (for egg wash)

powdered sugar to decorate

PREPARATION: