Step 1

Make the cake: Preheat the oven to 350°F (180°C). Grease a 1½-quart loaf pan or 9-inch round cake pan or with nonstick spray or butter.

Step 2

In a large bowl, combine the egg yolks, ¼ cup granulated sugar, the vegetable oil, and vanilla. Using an electric hand mixer, mix on high speed until the mixture turns pale yellow in color, 2–3 minutes. Clean and dry the beaters.

Step 3

In a separate large bowl, whip the egg whites with the electric hand mixer on high speed for about 1 minute. Add the cream of tartar, then continue whipping until the egg whites are thick and foamy, 2–3 minutes. Gradually add the remaining ¼ cup of granulated sugar and continue to mix until the whites form soft peaks, 2–3 minutes more.

Step 4

Add about a third of the egg whites at a time to the yolk mixture and gently fold with a rubber spatula to incorporate; do not overmix.

Step 5

Sift the flour and baking powder into the egg mixture and fold gently with the spatula. Be careful not to overmix.

Step 6

Pour the batter into the prepared pan and smooth the top.

Step 7

Bake the cake for 30 minutes, or until firm. Remove from the oven and let cool for about 30 minutes.

Step 8

While the cake is cooling, make the tres leches mixture: pour the evaporated milk into a large microwave-safe bowl and microwave for about 2 minutes, until warm. Add the Earl Grey tea bags and let steep for about 20 minutes. Remove the tea bags from the evaporated milk, squeezing out any liquid.

Step 9

Add the sweetened condensed milk, media crema, and vanilla to the evaporated milk mixture and stir until smooth.

Step 10

Once the cake has cooled, pierce all over with a fork, then pour the tres leches mixture evenly over the cake. Cover the cake and chill in the refrigerator for at least 4 hours, or overnight.

Step 11

Make the whipped cream: In a medium bowl, whip the cream with an electric hand mixer on medium-high speed for 2–3 minutes, or until it begins to thicken.. Add the powdered sugar and vanilla and continue to mix until the cream is thick and forms stiff peaks, 2–3 minutes.

Step 12

Evenly spread the whipped cream over the cake. If desired, dust cacao powder over the top to cover the entire surface. Grate the orange zest and shave dark chocolate on top.

Step 13

Slice and serve immediately.

Step 14

Enjoy!