01 -
Preheat oven to 325°F (165°C).
02 -
In a saucepan over low heat, melt the butter and marshmallows together.
03 -
In a mixing bowl, combine the sugar, eggs, vanilla extract, and salt. Mix well.
04 -
Gradually pour in the melted butter and marshmallow mixture while continuing to mix.
05 -
Add the coconut flakes and sifted flour, mixing until well combined.
06 -
Line a 13 x 9 x 1-inch rectangular baking pan with parchment paper. Spread the dough evenly in the pan.
07 -
Bake for 20-25 minutes, or until the top is golden and a knife inserted into the center comes out clean.
08 -
Remove from the oven and allow to cool completely before slicing.