This is a modification on the Chocolate-Covered Sandwich Cookies with Dulce de Leche (Alfajores) posted on this website.
I am writing here to share my success and encourage anyone who is conflicted following this recipe based on the negative reviews. You need to modify!!! If you, like me love Havanna brand alfajores but can't find them in the USA, this might be the next best thing.
The cookie in the above recipe is too hard and tasteless. Find a SOFT BUTTER COOKIE RECIPE and then swap out most of the flour with whole wheat flour. And for the love of God, if you use the recipe that was linked, ues real butter and skip the "butter extract" thats just creepy (it worked beautifully for me). Roll out the dough and use use a cookie cutter form instead of the "roll it in a ball" and bake method. You want those alfajor cookies to be nice and flat.
MAKE YOUR OWN DULCE DE LECHE!!! Take 3 cans of sweetened condensed milk and boil/simmer them completely submerged for 6 hours (I know the standard time is 2-3 hours, but it gets thicker and darker the longer you cook it and you need it thick to hold together in these cookies).
Lastly, screw the ganache, seriously. If you are making these to be sturdy, delicious little treats just melt down a giant ass thing of chocolate (I used Trader Joe's "Pound Plus" 72% dark chocolate). It has a perfect chocolate exterior and now I can pack them in a box and send them across the country to my favorite stateside Argentine.
Feel free to sprinkle whatever you want on top, i toasted some coconut and tossed that on the cooling chocolate along with orange zest, sea salt and raw sugar. I hope this helped!