I offer a recipe for a very mild horseradish dressing from a very popular local restaurant here in KC (whose recipe book cover quaintly says "Receipts"--near drove me nuts as a kid).
I whip up a big batch of this when I slow roast a brisket.
1/2 c whipping cream 1/4 c mayonnaise 2 Tb salad mustard (I use prepared, not dry) 1 heaping Tb horseradish 1/2 tsp lemon juice 1/2 tsp Worcestershire sauce 1/4 tsp seasoned salt 1/8 tsp each salt and pepperBeat cream until stiff. Fold in rest of ingredients. Chill.