public void ChooseRecipe() { recipe.DisplayStandardRecipe(); Console.WriteLine("Do you want to use the standard recipe or make your own? Please enter 'standard' or 'make'."); string recipeChoice = Console.ReadLine().ToLower(); switch (recipeChoice) { case "standard": recipe.UseStandardRecipe(inventory); break; case "make": recipe.MakeOwnRecipe(inventory); break; default: Console.WriteLine("That was an invalid entry. Please press enter to continue."); ChooseRecipe(); break; } }