For variety, pickled carrots can be substituted for Jalapenos. For different effects, aditional carrots and/or jalapenos can be finely diced and added to the dip. Dip increases in jalapeno strength with age.
Use blender to liquify jalapenos, then onion and cheese, cut in 1-inch cubes. When well blended, mix in bowl with mayonnaise. Dip will stay for 2 weeks in refrigerator.
From "Trail Boss's Cowboy Cookbook" by Society of Range Management.