Steam carrots and then place into a baking dish. They should be tender at this point.
While carrots are steaming, mix onions, horseradish, mayonnaise, and salt
Melt butter and then combine with the crushed crackers
Sprinkle cracker mix over carrots
Dab mayonnaise mix over the carrots*
Bake 30 minutes
Notes
*At this point in the recipe, it instructs us to "Then put on carrots." I'm assuming this is the "put on" phrase often used in cooking. For example: "I put on a pot of coffee". If you have another idea, please let me know in the comments below.