Pudding Poke Cake

1 package (2-layer size) cake mix, any flavor
2 packages (4-serving size) pudding, any flavor
4 cups cold milk
1 cup confectioners sugar

Prepare cake mix as directed on package, baking in a 13 x 9-inch pan. Remove from oven. Poke holes at once down through the cake to the pan with the round handle of a wooden spoon.  Holes should be 1 inch apart.

Only after poking holes, combine pudding mix with sugar in a large bowl. Gradually stir in milk. Then beat at low speed in milk. Then beat at slow speed of electric mixer for not more than 1 minute. (Do not overbeat.) Quickly, before pudding thickens, pour one half of the thin pudding evenly over warm cake and into the holes to make the stripes.

Allow remaining pudding to thicken slightly; then spoon over the top, swirling it to "frost" the cake.

Chill at least 1 hour.  Store in refrigerator.