I manipulated Cutterlight’s brownie recipe to be GF with buckwheat flour and coconut sugar. Yes- it is still sugar and sweet and maybe a notch less on the glycemic index. Works for me.
I used Valrhona cocoa powder and their 70% Andoa Noire feves and Guittard’s organic 74% wafers. Both lightly chopped. I buy my chocolate by the kilo from Chocosphere. The base is buckwheat flour, almond flour and butter, eggs and oil (I did coconut, avocado and sunflower). You’ll likely want to fold in the nibs and goji berries so they don’t burn. You can mix everything but nuts, chocolate and berries, up together in one bowl, then fold those in.