Preheat the oven to 400°F. Line a baking sheet with parchment paper or use a silicone mat.

In a large bowl, mix together the flours, xanthan gum, sugar, baking powder, salt, sugar and flax. Work in the coconut oil until the mixture is crumbly.

In a separate bowl, whisk together the eggs and Greek yogurt until frothy. Add to the dry ingredients, stirring until well blended. The dough will be sticky. Add bacon, cheese and kale. Mix again until combined.

Chill the dough in the refrigerator for 15 minutes.

Drop the dough onto the parchment paper or silicone mat and form into a circle in the center of baking sheet. Using a biscuit cutter, round cookie cutter or the lid to a mason jar, cut dough into rounds. There will be between 8-12 depending on the size of your cutter.

Bake for 15–20 minutes, or until golden brown. Remove from the oven and let cool for at least 5 minutes before serving.