Tres Leches Cake

I found this recipe that a friend gave me and I have yet to make it. I just need a good reason, or do I?

Serves 12-16
Cake
1 ½ cups + 2 tbsp. all-purpose flour
1 tbsp. baking powder
4 eggs, separated
1 ½ cups sugar
½ cup milk

Topping
1 (12 oz.) can evaporated milk
1 (14 oz.) can sweetened condensed milk
1 ½ cups milk
1 (16 oz.) carton sour cream

whipped cream
fresh strawberries


Preheat oven to 350 degrees. Grease and flour a 13 x 9 pan. Sift flour with baking powder and set aside, In a large bowl with clean beaters, beat egg whites until frothy. Gradually add sugar beating until stiff peaks form. Add yolks, one at a time, then slowly add flour and milk, alternating to mix well. Pour batter into prepared pan and bake until edges are golden brown, about 40-45 minutes. Remove from pan and let cool completely on a rack. Prepare topping, pour over cake and let sit until all the mixture is absorbed, 20-30 minutes. Cover and refrigerate overnight ***. Frost with whipped cream and garnish with sliced strawberries. Serve cold.

***If there’s much liquid still sitting on top of the cake when you’re ready to frost, spoon most of it off before you go on.