Preheat oven to 350 degrees F. Line a baking pan with parchment paper hanging over the sides of a 9x13 pan. This will help with removing the bars from the pan after baking.
In a food processor, blend the Maria cookies until they are finely crushed. Transfer them to a bowl and mix them with butter until the mixture looks like wet sand.
Transfer the Maria cookie and butter mixture to the pan and pat it down to the bottom of the pan using the bottom of a cup to form the crust.
Pour sweetened condensed milk evenly over the crust making sure every inch of the crust is covered.
Add the cubed guava paste and sprinkle the white chocolate chips, sliced almonds, and coconut flakes evenly, in that order, over the sweetened condensed milk.
Carefully, press down on the ingredients firmly in the pan so they can all bind together when baking.
Bake for 25 to 30 minutes or until lightly browned. Cool the bars completely before slicing and serving. Enjoy!
Notes
These bars will last 3 days at room temperature, about 1 week in the fridge in an airtight container or in the freezer for up to 3 months.