In a bowl combine all of the ingredients for the crab cakes except the vegetable oil and stir until well mixed.
Using a spoon form patties approximately 3 inches in diameter.
Heat the vegetable oil in a frying pan over medium heat and fry the crab cakes for 2-3 minutes per side until crisp and golden in colour.
To make the mayonnaise combine all of the ingredients in a food processor and blend until smooth.
Serve the crab cakes topped with the roasted red pepper mayonnaise and wedges of lemon.