Absolutely! While the recipe calls for ½ cup of mayonnaise, you can definitely make your own mayonnaise from scratch if you prefer. There are numerous recipes available online that guide you through the process of making homemade mayonnaise using egg yolks, oil, vinegar or lemon juice, and seasonings. Once you have your homemade mayonnaise ready, simply follow the remoulade sauce recipe and substitute the store-bought mayonnaise with your homemade version.