1 1/2 C (about 4 oz) Good Quality Dark Chocolate, chopped into large chunks
Preheat the oven to 350 degrees and line 2 baking sheets with parchment paper.
In a large bowl, combine hazelnut flour, 1-to-1 flour, salt, baking powder and baking soda. Stire well and set aside.
In the bowl of an electric mixer, combine sugars and coconut oil. Beat on medium speed for 2-3 minutes until fluffy. Add eggs and vanilla. Beat about 1-2 minutes more until smooth. Scrape down bowl. Turn mixer to lowest setting and slowly add the flour mixture. Mix until just combined. Add in the nuts and the chocolate. Mix just 30 seconds more on low setting. Stir remainder by hand if needed.
Scoop into gold ball size balls. Place onto prepared cookie sheet about 2 inches apart. Flatten slighting with your hand if you want larger cookies (if you don’t flatten they will be thicker). Bake in preheated oven for 9-10 minutes until edges are set. Remove from oven. Cool 2 minutes on cookie sheet, then remove to wire rack to cool completely.