Sep 7, 2023 · Ingredients. 3 envelopes unflavored gelatin. 1/2 cup plus 3/4 cup water, divided. 1-1/2 cups sugar. 1/4 to 1/2 teaspoon raspberry extract. Red food coloring. Additional sugar. Directions. In a small bowl, sprinkle gelatin over 1/2 cup water; let stand 5 minutes.