Preheat your oven to 180°C (160°C fan)/350°F. Grease and line a 20cm springform cake tin with parchment paper.
400 g Ricotta cheese
Cream butter and sugar until light and fluffy (about 3 minutes using a stand mixer or handheld beater).
115 g Unsalted butter, 200 g Caster sugar
Add the eggs, one at a time, beating well after each addition. The batter may look slightly curdled, this is normal.
3 large Eggs
Fold in the ricotta, lemon zest, and vanilla extract using a spatula. Avoid overmixing to retain air.
1 tbsp Lemon zest, 2 tsp Vanilla extract
Sift in the flour, baking powder, and salt. Fold until combined and smooth.
1½ tsp Baking powder, ¼ tsp tsp Salt, 180 g Plain flour
Pour the batter into the prepared tin and smooth the top.
Bake for 45–55 minutes until a skewer inserted into the centre comes out clean or with a few moist crumbs.
Cool in the tin for 10 minutes, then transfer to a wire rack. Dust with icing sugar once cooled.
Icing sugar