to make the filling : in a small bowl,
place 2 tbsp of key lime juice and gelatin, stir and set aside to let the gelatin soften. in a small saucepan on medium heat, add 1/2 cup key lime juice and sugar. bring the mixture to a light simmer, stirring well, until the sugar dissolves. remove from the heat and add the
gelatin mixture and mix well. mix in the condensed milk,
transfer to a bowl and cool in the refrigerator. in an electric mixer, whip the cream to stiff peaks. gently fold the whipped cream into the key lime mix until combined. fill the crust with the key lime mix, cover lightly and place in the freezer. freeze overnight. remove the pie 1 hour before serving, cut into 10 slices and return to the refrigerator until ready to serve. garnish with a slice of
lime and fresh raspberries.