Preheat oven to 400 degrees. Combine goat cheese and cream cheese in a medium-sized bowl or food processor then whip with beaters or process until smooth. Scoop into a bowl if using a food processor then fold in prosciutto. Spread mixture into a 9"x7"x2" baking dish (or similar size dish - a pie pan would also work) then spread fig jam on top. Bake for 8-10 minutes or until warmed through, then sprinkle pistachios on top and serve with crackers (dip is best warm or even room temperature vs piping hot.)