Preheat the oven to 350F and spray a 13 X 9 sheet pan with cooking spray.
In a large bowl combine the almond flour, baking powder, and salt. Now add in the butter and egg whites. Stir well.
Pour the batter into the sheet pan and bake in the oven for 12 minutes.
Remove from the oven and let cool slightly. Cut into 12 equal rectangles and place on a larger sheet pan or cookie sheet.
Pre-heat the broiler to HI.
Prepare the topping by mixing the butter, garlic powder, and the parsley. Use a basting brush or spoon to spread the topping onto the bread.
Place in the center of the oven under hi-broil and broil for a few minutes to crisp up the bread. Serve.