Guava Duff

Instructions

1. Peel the guavas, remove the seeds if there are many, then dice the flesh into small cubes.
2. In a bowl, mix the flour, sugar, baking powder, salt and cinnamon, then rub the cold butter in with your fingertips until it looks like sand.
3. Add the milk and lime zest, mix just until you have a soft dough, then fold in the guava cubes.
4. Butter a pudding basin or mold, pour in the dough, and cover with baking paper and tightly sealed foil.
5. Set it in a large pot of simmering water coming halfway up the mold and steam, covered, for 50 to 60 minutes, adding boiling water if needed.
6. For the sauce, melt the brown sugar in the water, add the butter, then thicken with the cornstarch dissolved in cold water and let it bubble for 2 minutes.
7. Unmold the duff while warm and pour the hot sauce over it.