In a food processor, pulse Maria biscuit cookies until crushed slightly. Remove from processor & set aside.
Cheesecake Truffles
Zest the lime & set aside half the zest for sprinkling on top of truffles for garnish.
In the food processor, place the other half of the zest with the cream cheese, sugar & vanilla. Juice the lime to obtain 3 Tbsp of juice & add to processor. Combine until smooth.
Using a Tbsp or a mini cookie scoop, scoop small balls of cream cheese mixture onto a sheet of parchment paper. Place balls in freezer.
After about 20 minutes, remove balls from freezer & roll in crushed Maria crumbs. Place back in freezer.
Guava Drizzle
Place guava paste, water & cardamom spice in a small microwave bowl. Heat carefully, mixing well. Set aside to cool then drizzle over cheesecake truffles. Sprinkle with remaining lime zest. Keep frozen in a covered container until ready to serve.