Preheat the oven to 320 F (160 C). In a bowl, combine all the granola ingredients and mix well. Place the mixture on a lined baking sheet and bake for about 40 minutes, stirring every 10 minutes. Remove from the oven and let it cool off. Store in an airtight container.
Pineapple puree:
In a saucepan, combine the frozen pineapple, water, sugar, and mint leaves. Bring to a boil and simmer until most of the liquid evaporates, leaving a little bit at the bottom. Remove from heat and let it cool. Blend the pineapple mixture until smooth.
Assembly:
Place yogurt and pineapple puree at the bottom of a glass or bowl. Add your favorite fruits on top (mango, cherries, strawberries, etc.). Sprinkle 2 tablespoons of granola over the fruits. Add another layer of yogurt and pineapple puree. Garnish with chopped fruits and mint leaves and enjoy!