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Claire Saffitz's Upside-Down Peach Polenta Cake

A moist, summery upside-down cake featuring ripe peaches, a syrupy fruit glaze, and a tender, porridgy polenta cake base. This recipe uses cooked polenta for extra moisture and texture, and is perfect for showcasing peak-season peaches. The cake is visually stunning, easy enough for home bakers, and fancy enough for entertaining.

IntermediateAmericanServes 8

Printable version with shopping checklist

Source Video
1h 25m
Prep
1h 5m
Cook
18m
Cleanup
2h 48m
Total

Cost Breakdown

Total cost:$10.40
Per serving:$1.30

Critical Success Points

  • Greasing and lining the pan with parchment to prevent sticking.
  • Macerating and reducing peach juices to avoid a soggy cake.
  • Cooking polenta only until thick and porridgy, not fully cooked.
  • Creaming butter and sugar thoroughly for a light cake.
  • Alternating dry and wet (polenta) ingredients without overmixing.
  • Baking until golden and a tester comes out clean.
  • Unmolding after 10 minutes—not sooner, not later.

Safety Warnings

  • Use caution when reducing syrup; hot sugar can burn.
  • Take care when flipping hot cake to avoid burns from steam or syrup.
  • Let cake cool slightly before unmolding to prevent breakage.

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