Preheat oven to 350°F.
Melt the coconut oil in a bowl to knead the dough. This can be done in the microwave or steam bath.
Beat in the egg and add the salt. Stir the mixture.
Add the almond flour. Mix well until a dough is formed. If the dough seems too dry, add a little water, one teaspoon at a time, until it comes together.
Roll the dough into a ball and leave for 10 minutes under food wrap at room temperature.
Place the dough on a sheet of parchment and sprinkle with sesame seeds. Cover the dough with a second sheet of parchment.
Using a rolling pin, roll out the dough to about 1/8-inch thickness.
Using a sharp knife or pizza cutter, cut the rolled out dough into squares or rectangles of desired size.
Transfer the parchment with the pieces to a baking tray. Bake for 10 minutes, until crackers are golden brown around the edges.
Remove the crackers from the oven and let them cool on the baking sheet for a few minutes, then transfer them to a wire rack to cool completely.