1 4x8 sheet of bead board paneling (i bought the off-white/greyish one cuz it was $15 cheaper than the pre-primed white one.)
Wide paint brush
White/ off white flat paint (i used trim paint)
Have the hardware store cut your paneling in half so you have 2 4x4 sheets. It makes it so much easier to carry and you'll need it cut anyway.
Roughly paint on the white paint going in the direction of the stripe in the paneling. I just did one coat so you can still see a bit of the grain showing through.
Let it dry overnight and there you have it!