Deviled Eggs
8 hard-boiled eggs
¼ cup mayo
1 Tbsp. onion, finely diced
1 tsp. Dijon mustard
¼ tsp. salt
1 tsp. Halladay's Horseradish Seasoning
Halve eggs lengthwise. Remove yolks; set aside egg whites. Mash together yolks and remaining ingredients and pipe into reserved egg whites.