We love all kinds of dips and spreads, creating many recipes that are twists on old-fashioned favorites that we updated and changed to suit our tastes. This recipe, on the other hand, is a classic. You can use fresh fish; however, we relied on salmon filets from the store, cooked gently in butter. The combination of cream cheese, salmon, mustard, and horseradish is delicious. This is also a great way to use smoked salmon, whether it's cold-or hot-smoked. Just use about 1/2 pound of salmon in the recipe. We love appetizer recipes like this that can be made ahead of time. This recipe can be easily doubled too. It will keep in the fridge for two to three days.