The card text on Pepper Pots says. "Generate the recources of the top card in your discard pile." Notice it does not say "... The printed recources..." The Power of X cards say "Double the number of recources this card generates while paying for a X card.
Heres the question. If Pepper Potts is used to generate the recources of a 'power of x' card to pay for an X card does it generate 1 recource or 2?