Preheat oven to 375 degrees. Line a 8 1/2 x 4 1/2 inch loaf pan with parchment paper and lightly spray the sides of the pan
In a large mixer bowl whisk or sift the coconut flour, psyllium husk powder, Swerve, baking powder and salt until combined and no lumps are in the coconut flour
Add the eggs. Beat on low 10 seconds to moisten the dry ingredients. Increase the speed to medium. Beat on medium-low about 30 seconds or until fully combined
Scrape down the sides of the bowl if needed. Add the butter and extract (if using) Beat on medium another 30 seconds or until fully combined
Scrape down the sides of the bowl again if needed. Add the hot water. Beat on medium another 30 seconds or until fully combined and smooth.
Scrape down the sides of the bowl again and push the dough to the center of the bowl. The mixture will be thin but will thicken as it sits
Allow the dough to sit for about 5 minutes so the coconut flour and psyllium husk powder can absorb some of the liquid.
After 5 minutes check the dough if it is still thin add more coconut flour 1-2 TBS at a time. Beat after each addition and allow the dough to sit 5 minutes after each addition, until the dough is thick enough to roll into balls (I had to add about 1/4 cup more of the coconut flour. Everyone's coconut flour is different)
Use a fork and stir together the egg wash ingredients until the egg yolk is broken and fully combined. Set aside
Scoop the dough out 1/4 cup at a time for small rolls or 1/3 cup at a time for medium rolls. Roll each scoop into a tight ball and place them side by side into prepared loaf pan Brush the tops with a light layer of the egg wash. Store any leftover egg wash in an airtight container in the refrigerator for up to 3 days
Place rolls into the preheated oven and bake at 375 degrees for 20-30 minutes or until golden and a tester comes out clean. (mine took about 25 minutes)
Once the rolls are baked remove them from the oven. They will be soft but will firm up as they cool.
Allow then to cool in the pan for about 30 minutes then carefully turn them onto a wire rack to cool completely. Do not separate the rolls from each other until they are cooled completely