Preheat the oven to 350°F (175°C). In a mixing bowl, combine flour, sugar, baking powder, and salt. In another bowl, whisk eggs, milk, and vanilla. Gradually combine wet and dry ingredients until just mixed. Pour batter into a greased 9x13 inch baking pan and bake for 25-30 minutes or until a toothpick comes out clean.

Tres Leches Mixture

Make the Tres Leches Mixture

In a bowl, whisk together sweetened condensed milk, evaporated milk, and whole milk. Once the cake has cooled, poke holes all over the cake with a fork and pour the milk mixture evenly over the cake. Let it soak for at least 1 hour.

Whipped Cream Topping

Prepare the Whipped Cream

In a mixing bowl, combine heavy cream, powdered sugar, and vanilla extract. Beat with an electric mixer until soft peaks form. Spread the whipped cream over the soaked cake.

Candied Orange

Prepare the Candied Orange

Slice the orange thinly. In a saucepan, combine sugar and water over medium heat. Once dissolved, add orange slices and simmer for 30 minutes until translucent. Let cool on a wire rack.