I baked this cake last Thursday, and it was really good!
I see where some of you may use the DH Leches cake mix.
You do not use that, you simply use the DH butter recipe cake mix.
Do not use DH Tres Leches cake mix.

Tres Leches

Easy Tres Leches

1 box Duncan Hines golden butter recipe cake mix
2 cans (12 ounces each) evaporated milk
1 can (14 ounces) sweetened condensed milk
16-ounce carton light cream or half and half
3 egg whites
3/4 cup sugar
3/4 cup light Karo syrup
1 teaspoon vanilla extract

Make cake batter as directed on box. Pour into greased and floured 9x13-inch cake pan. Bake 35 minutes at 350 degrees and let cool completely.

In a bowl, mix the milks and cream. Pierce cake with a fork and pour the milk mixture evenly over it and let it absorb.

In a saucepan, melt the sugar and syrup together over low heat. Let cool slightly. Beat the egg whites until foamy in a large bowl. Slowly pour over the warm syrup and continue beating the eggs until the meringue reaches a thick consistency. Add vanilla. Frost top of cake and keep refrigerated.