oh and apple, crepey thingys with horseradish sounds feasible. The horseradish would play the contrast, kinda sour/tart against the sweetness and rounded flavor of the apples.

Similar to sour cream.

Now who hasn't had a jalapeno jam? or a sweet garlic jam? some kinda hot pepper jam.

Think of caribean jerks. Famous for combining savory, hot and sweet.