Step 1

Preheat the oven to 350F°/180C°.

Step 2

Line with parchment paper or grease with oil or butter a loosed bottom cake pan* (size 9 inches/23 cm).

Step 3

To make the ricotta filling, place the first group of ingredients in a bowl and mix with a fork or a whisk, until well combined.

Step 4

To make the crumb shell, place the second group of ingredients in a bowl and using your fingers, rub the egg and the oil into the flour and sugar to make a crumb-like mixture (see pictures above).

Step 5

Using about ⅔ of the crumbs, make the cake bottom and edges, but you don't want to press the mixture too much.

Step 6

Fill this crumble shell with the ricotta mixture (see pictures above), then sprinkle the crumble mixture all over the ricotta filling.

Step 7

Bake for 30 minutes until lightly golden.

Step 8

Let it cool at room temperature, and served dusted with icing sugar.