Persian Yogurt Cake (Keyk-e Mast): Soft, Lemony, One Bowl

Keyk-e mast is the cake many Iranian homes bake without a recipe: yogurt, eggs, sugar, oil and flour, stirred in one bowl and ready in under an hour. With autumn tea season here and Yalda Night gatherings only a couple of months away, it is a reliable, make-ahead cake that needs no mixer and no special ingredients.

Why it works

Yogurt adds moisture and a gentle tang, while oil keeps the crumb tender for days. Lemon zest and a little cardamom give it the familiar Persian tea-table aroma without making it heavy. The result is a soft, tight crumb that slices cleanly, perfect with black tea.

Tips for a soft cake

• Use room-temperature eggs and yogurt so the batter blends smoothly.
• Use plain, full-fat or low-fat yogurt without sugar; very thin yogurt can make the cake wet, so stir it well first.
• Whisk the wet ingredients first, then fold in the flour just until no dry streaks remain. Overmixing makes the cake tough.
• Grease the pan and line the bottom with baking paper so the cake releases cleanly.
• Do not open the oven in the first 30 minutes. Test with a skewer: it should come out clean or with a few dry crumbs.

Variations

• Orange and saffron: swap lemon zest for orange zest and add 2 tablespoons of bloomed saffron water.
• Rose water: replace the vanilla with 1 teaspoon of rose water and top with crushed pistachios.
• Poppy seed: add 2 tablespoons of poppy seeds for a classic Persian touch.
• Glaze: stir 2 tablespoons of lemon juice into half a cup of icing sugar and spoon over the cooled cake.

Serving ideas

Serve slices warm or at room temperature with hot tea, fresh fruit or a spoon of whipped cream. For a Yalda table, place it beside pomegranate, nuts and dried fruit. It also works well as a lunchbox treat or a simple birthday cake topped with berries.

Storage

Keep the cake covered at room temperature for up to 3 days, or in the fridge for 5 days (bring to room temperature before serving). Wrapped slices freeze well for up to 2 months; thaw overnight at room temperature.

Note: the cake contains eggs, dairy and wheat; people with those allergies should avoid it or use tested substitutes.