In a medium saucepan, mix Knox? unflavored gelatine with sugar. Blend in water. Let stand 1 minute. Stir over low heat until gelatine is completely dissolved, about 3 minutes.
Add chocolate chips and continue cooking, stirring constantly, until chocolate is melted. With a wire whip or rotary beater, beat mixture until chocolate is blended. Pour into an 8- or 9-inch square pan and chill until firm. To serve, cut into 1-inch squares.
Variations Rocky Road Blox - Stir in 1/2 cup each chopped nuts and Marshmallow Cr?me Cherry Fudge Blox - Stir in 1/2 cup chopped maraschino cherries Fruit 'n' Nut Blox - Stir in 1/2 cup each raisins and chopped nuts
