In a large mixing bowl, use a mixer to beat butter and cheese until smooth. Add almond flour, and salt and mix until well-combined. Dump the dough onto a piece of parchment or a greased piece of plastic wrap, roll it out into a thin 12-inch long square. Spread the pecans in a square on the dough, pressing lightly, and distributing them evenly on the dough. Roll up the dough into a log. Wrap in plastic and refrigerate for at least 30 minutes or for up to 4 days.
Meanwhile, preheat the oven to 350 degrees F. Cut the log 3/8ths-inch thick with a small, sharp knife and place the crackers on a sheet pan lined with parchment paper. Bake for 22 minutes until very lightly browned. Rotate the pan once during baking. Cool and serve at room temperature. Makes 18 servings (36 crackers).