In a small saucepan, combine blueberries, salt, sugar, and cinnamon. Place pan over medium-low heat and simmer for 2 to 3 minutes. Cool completely.
Spoon 1/3 cup yogurt in the bottom of a glass and smooth the top. Add 1 tablespoon blueberry mixture and 1 tablespoon granola. Repeat the layers and eat right away, or chill in fridge until ready to eat.