Heat oil in frying pan to medium-high, about 350 degrees. Combine garlic,
mayonnaise, cheese, and mustard in blender until smooth. Remove from
blender. Cut each Polish sausage into two shorter halves and score
lengthwise. Beat egg and milk with fork until smooth. Place each sausage
half at end of egg roll wrapper, add a dollop of mustard sauce and roll
sausage into wrapper, sealing ends with egg mixture. Fry in hot oil until
lightly browned on all sides. Garnish with chopped parsley and serve with
extra mustard sauce.