Combine clear glue and glitter (and dye if using). Stir until glitter is evenly distributed.
Slowly add liquid starch a few tablespoons at a time. Stir after each pour of liquid starch and mix until well combined. Keep adding starch until you find a good consistency for the slime. I typically use ¼ - ½ cup but you could use up to 1/3. The more starch you use the harder the slime will be.
Add chunky glitter and mix it into the slime with your hands.
Store in an airtight container.