Place 3 tablespoons cold water in a small saucepan, and sprinkle with gelatin. Let soften for 5 minutes. Gently heat the gelatin, stirring constantly, until the gelatin has dissolved. Remove from the heat, and set aside.
Pour the mousse into 2 small bowls or ramekins. Cover the mousse with plastic wrap and refrigerate for at least 2 hours, until the mousse is slightly firmer.
Garnish with dill, and serve with bread or crackers.