First, preheat the oven to 400 degrees.
Second, on a microwave-safe plate, melt the mozzarella cheese.
Third, mix the sour cream with the melted mozzarella cheese.
Next, in a separate mixing bowl place the almond flour, coconut flour, chives, one egg, and the cheese/sour cream mixture and mix well.
Then, form a ball of dough out of the flour mixture and refrigerate for 20 minutes to set.
After the dough has been resting for 20 minutes in the fridge, take it out and roll it out between two pieces of parchment paper. You want it to be very thin for the crispiest crackers.
Cut the dough into crackers of whatever shape/size that you would like.
Next, place them on a parchment-lined baking sheet.
Then, brush the crackers with melted butter and sprinkle with salt.
Bake the crackers for 10 minutes on one side at 400 degrees and then turn the crackers over and bake for another 10 minutes. Be sure to keep an eye on them. (This amount of cook time will completely depend on how thick your crackers are.)
Finally, after they are fully baked and slightly golden brown, take them out of the oven and let them cool before serving!