Make Coconut Pecan Filling, it needs to cool
In a saucepan combine butter, sugar and milk , bring to a simmer and cook until sugar dissolves, about 2 minutes.slowly whisk some hot mixture to whisked egg yolks to temper them, adding enough to make them hot. Then slowly wisk in back into saucepan
Cook over medium heat stirring constantly until thickened, about 15 minutes
Remove from heat and stir in vanilla, coconut and pecans, scrape into a bowl and let cool to room temoerature
MAKE THE BROWNIE COOKIES
Preheat oven to 350. Line cookie sheets with parchment paper
Melt chopped chocolate in microwave just until smooth, let cool to room temperature
Combine flour, cocoa powder, salt and baking powder in a bowl, whisk to combine, set aside
In a large bowl beat butter and sugar until light and fluffy
Stir in melted chocolate
Add eggs one at a time, beating after each egg
Stir in the flour mixture until well combined. Chill dough 30 to 60 minutes until its easy to roll into balls
Roll dog into 1 inch balls and place 2 inches apart on prepared baking sheets. Bake about 11 minutes until puffed and just set. Cool on pan on wire rack 5 minutes them transfer to racks to cool completely
ASSEMBLE THE SANDWICH COOKIES
Place one cookie flat side up on work surface
Spread some cooled coconut pecan filling on cookie
Add another cookie on top and press lightly to make c sandwich. This makes about 20 sandwich cookies
