A dense, fragrant San Marinese fruit and nut cake made with polenta and dried figs.
Bustrengo is the oldest and most characterful cake of San Marino and the Romagna region. Dense, chewy, and deeply fragrant, it is made with polenta, flour, dried figs, walnuts, and raisins, flavoured with orange and anise. It is not delicate or elegant — it is a cake built for mountain winters, packed with energy and flavour.
Serves 10
Combine polenta, flour, anise seeds, and a pinch of salt in a large bowl. Stir in figs, raisins, and walnuts.
Add the grated zest of 1 orange, 2 beaten eggs, 80 ml olive oil, and 200 ml warm water. Mix until a thick, dense batter forms.
Leave the batter to rest for 10 minutes while preheating the oven to 180 °C. The polenta will absorb moisture and swell.
Pour into a greased 23 cm round tin. Bake for 40–45 minutes until a skewer inserted in the centre comes out clean and the top is dark golden.
Cool completely before slicing. Dust with icing sugar if desired. Serve in thin wedges.
Do not overbake — a slightly moist interior is correct; it firms on cooling.
The cake improves in flavour after a day wrapped at room temperature.
Add a shot of sapa (grape must syrup) or vincotto for extra depth.
Include dried apricots or dates alongside the figs.
Wraps well at room temperature for 4–5 days.
Bustrengo dates to at least the 16th century and is mentioned in old Romagnol chronicles as the celebratory cake of the autumn fig harvest.
Fine-ground instant polenta works, but the texture will be slightly less chewy.
Always at room temperature — it is too dense when warm and crumbles when too cold.
Per serving (120g / 4.2 oz) · 10 servings total
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