pour pizza sauce into saucepan and heat over medium-low heat

cut pepperoni slices into halves or quarters

optional step: heat pepperoni on paper towel in microwave, or fry in frying pan to crisp

add pepperoni to sauce, store and remove mixture from heat

when sauce has cooled, add mozzarella and parmesan to sauce mixture and mix well

heat oil in deep fryer, or on stovetop in a deep skillet over medium heat (1-1.5 inches)

on a clean, dry surface lay down an egg roll wrapper so that it looks like a diamond

spoon 1-2 tablespoons of mixture into center of diamond in a horizontal line

fold left and right sides toward center

dip finger or a silicone pastry brush in water, and lightly brush the tops of the sides you just folded with a bit of water, as well as the lower edge of the wrapper, do not wet the top yet. Be careful not to use too much water, it will compromise the egg roll wrapper

fold the bottom up and over the mixture, then slide it back to seal the filling in

wet the upper edge of the wrapper, and firmly roll the bottom up until you have a roll. This should be fully sealed, but if you have gaps, use a bit of water to seal them. blot off excess water with paper towel.

fry for 2-3 minutes per side, or until golden brown, drain on paper towels. do not cook too many at a time or it will lower temperature of oil. I cook about 3 at a time