Bake the white cake in a 9x13" pan according to package directions. Let it cool for about 10 minutes.
Use the handle of a wooden spoon to poke holes all over the warm cake (not all the way through just to the bottom of the sponge).
Mix the Jell-O with the boiling water until dissolved, then stir in the cold water.
Pour the Jell-O evenly over the cake, making sure it soaks into all the holes. Chill in the fridge for at least 2 hours.
Crush the Golden Oreos in a zip bag, then stir in the melted butter and freeze-dried strawberries.
Spread the Cool Whip over the chilled cake. If using the pudding mix, whisk it into the Cool Whip first to thicken it up a bit.
Sprinkle the crunchy topping all over the top—press it in gently so it sticks.
Chill again if you’ve got time, then slice and serve cold.