Spread a large silicone mat or a piece of parchment paper on a work surface. Sprinkle with a little almond flour. Turn dough out onto work surface and pat into a rough triangle. Top with another piece of parchment and roll out into a 15x12 inch rectangle.
Spread the dough with the sugar-free Nutella, leaving a 1/2 inch border all around. Roll up tightly from one edge and pinch to seal the seam.
Cut the dough down the center, leaving one end intact. Twist the two strands around each other, making sure to keep the cut side of the strands up toward the top. Pinch the ends together.
Transfer the whole parchment or silicone liner to a baking sheet and bake 20 to 25 minutes, until the braid is firm to the touch and golden brown.
Remove and let cool, then sprinkle with powdered sweetener.
Serves 10. Each serving has 2.96g NET CARBS.Food energy: 236kcal Total fat: 22.28g Calories from fat: 200 Cholesterol: 28mg Carbohydrate: 6.13g Total dietary fiber: 3.18g Protein: 7.58g Erythritol: 9g