3 tablespoons plus 2 teaspoons raspberry gelatin powder
1 tablespoon vinegar
1 cup miniature chocolate chips
In a bowl, beat egg whites and salt until foamy. Combine sugar and gelatin powder; gradually add to egg whites, beating until stiff peaks form and sugar is dissolved. Beat in vinegar. Fold in the chocolate chips.
Drop by teaspoonfuls 2 in. apart onto parchment-lined baking sheets. Bake at 250° for 25 minutes. Turn oven off, leaving kisses in the oven 20 minutes longer. Remove to wire racks to cool.