A soft eggless sponge soaked overnight in paan-flavored tres leches milk with gulkand and fennel, topped with rose whipped cream and candied fennel. Indian fusion dessert perfect for Diwali and dinner parties.
½cupneutral oil120 ml; avocado, sunflower, or vegetable
½cupgranulated sugar100 g
1cupplain whole milk yogurt240 g; room temperature
½tspbaking soda
½tspvanilla extract2.5 ml
1½cupsall-purpose flour190 g
1¼tspbaking powder
¼tspfine salt
For the paan milk soak
1¼cupsevaporated milk300 ml
4large fresh paan leavesbetel; about 15 g
1tspfennel seeds
¼cupgulkandrose petal preserve
½cupsweetened condensed milk120 ml
½cupheavy cream120 ml
2dropsgreen gel food coloroptional
For the rose whipped topping
1½cupsheavy whipping cream360 ml; cold
2tbsppowdered sugar18 g
1tsprose water
1droppink gel food coloroptional
To garnish
Candied fennel (mukhwas)
Tutti frutti or chopped pistachios (optional)
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Instructions
Make the eggless sponge
Preheat the oven to 350°F (175°C). Lightly grease an 8-inch square pan with oil. Do not line with parchment. Tres leches is easiest when the cake stays in the same pan from bake to soak to serve.
In a large bowl, whisk the oil and sugar until smooth and the sugar mostly dissolves, 2 to 3 minutes by hand or with a mixer.
In a small bowl, stir the yogurt and baking soda together. Let sit 2 minutes until foamy. This means the baking soda is active.
Add the yogurt mixture and vanilla to the oil-sugar bowl. Whisk until combined.
Sift the flour, baking powder, and salt into the wet ingredients. Fold gently with a spatula until just combined. Do not overmix or the sponge will bake dense and resist soaking.
Spread the batter evenly in the prepared pan. Bake 25 to 30 minutes, until a toothpick inserted in the center comes out clean. I usually pull mine at 25 minutes. The sponge should look set but still springy, not dry.
Cool completely in the pan on a wire rack, at least 1 hour.
Prepare the paan milk mixture
Add the evaporated milk and paan leaves to a blender. Blend until the leaves break down and the milk turns pale green. Add the green food color here if using.
Add the fennel seeds and gulkand. Blend again until smooth.
Strain through a fine mesh strainer into a large bowl or measuring cup, pressing on the solids. Discard the fibrous pulp.
Stir in the condensed milk and heavy cream until fully combined. Taste a spoonful. It should read sweet, floral, and faintly fennel-forward.
Soak the cake
When the cake is cool, poke holes all over the top using a chopstick, skewer, or fork. Go about three-quarters of the depth of the cake. Space holes roughly 1 inch apart.
Measure out 1¼ cups (300 ml) of the paan milk and set aside for serving. You will pour this around each slice, not over the whole cake.
Slowly pour the remaining paan milk over the cake in stages, about ½ cup first, let it absorb 5 to 10 minutes, then add more. Repeat until all the soak milk (except the reserved portion) is used.
Cover tightly with plastic wrap and refrigerate at least 6 hours, preferably overnight.
Whip the rose cream and finish
When ready to serve, add the cold heavy cream, powdered sugar, and rose water to a mixing bowl. Whip on high speed with a whisk attachment until stiff peaks form, 2 to 3 minutes. Add pink food color if using. Stop as soon as peaks hold. Over-whipping turns the cream grainy.
Spread or pipe the whipped cream over the chilled soaked cake.
Garnish with candied fennel and tutti frutti if you like.
Cut into 9 squares. Place each slice on a plate and spoon a little of the reserved paan milk around it before serving.
Notes
Boxed mix shortcut: bake one box of vanilla cake mix in an 8-inch square pan per package directions. Cool completely, then follow the paan milk soak and topping steps. Eggs in the mix are fine if your household eats them.Paan leaves: look for fresh betel leaves at Indian grocery stores. Rinse and pat dry before blending. If unavailable, see the post FAQs for paan masala substitutes.Room-temperature soak: cold milk soaks more slowly. Let the blended paan milk sit out 20 minutes before pouring, or warm it 15 to 30 seconds in the microwave. Never pour hot milk on the cake.Avoid sogginess: reserve 300 ml of liquid before soaking. Tres leches should be moist, not soup.Make-ahead: bake the sponge up to 2 days ahead, wrapped in the fridge. Soak and chill up to 24 hours before adding whipped cream. Add cream within a few hours of serving.Storage: store the soaked cake (without whipped cream) covered in the refrigerator up to 3 days. Once topped with cream, serve within 24 hours.