Preheat the oven to 350°F (175°C) and prepare a baking sheet by greasing it with butter or oil.

In a large mixing bowl, combine ricotta cheese, granulated sugar, vanilla extract, almond extract, and egg, stirring until smooth.

In a separate bowl, sift together all-purpose flour, baking powder, and salt.

Gradually add dry ingredients into the ricotta mixture, folding gently until a soft dough forms.

Fold in slivered almonds evenly into the dough.

Scoop out portions of the dough and shape into small pillows, placing them on the prepared baking sheet.

Bake for 15-18 minutes until lightly golden and puffed up.

Let cool on a wire rack for about 10 minutes, then dust with powdered sugar.