Ingredients:
- 375g cake flour
- 300g granulated sugar
- 12g baking powder
- 6g fine sea salt
- 225g unsalted butter, room temperature, cubed
- 150g dulce de leche
- 4 large eggs, room temperature
- 240ml whole milk
- 10ml vanilla bean paste
- 450g full-fat cream cheese, cold
- 115g unsalted butter, room temperature
- 300g dulce de leche (for frosting)
- 250g confectioners' sugar, sifted
- 120g dulce de leche (for assembly filling)
- 2g flaky sea salt
Instructions:
- Preheat your oven to 350°F (175°C). Grease and line two 8-inch round cake pans with parchment circles.
- In the bowl of a stand mixer, combine the cake flour, granulated sugar, baking powder, and sea salt. Mix on low for 30 seconds to aerate.
- Add the 225g of cubed, room-temperature butter to the dry ingredients. Mix on low speed until the mixture resembles fine, sandy breadcrumbs.
- In a separate container, whisk together the milk, eggs, vanilla bean paste, and 150g of dulce de leche.
- With the mixer on low, slowly pour half of the liquid mixture into the flour-butter base. Increase to medium speed and beat for 1 minute, then add the rest until the batter is silky and pale bronze.
- Divide the batter equally between the two prepared pans. Bake for 35 minutes until a toothpick comes out with just a few moist crumbs.
- Cool cakes in pans for 10 minutes, then transfer to a wire rack to cool completely before frosting.
- Prepare the frosting by beating the cold cream cheese and 115g room-temperature butter until smooth. Add 300g dulce de leche and mix until combined.
- Gradually add sifted confectioners' sugar, whipping until the frosting holds stiff, velvety peaks.
- Assemble the cake by stacking layers with a thin coat of frosting and a drizzle of the remaining 120g dulce de leche between layers. Frost the exterior and garnish with flaky sea salt.