0.5 cup butter unsalted salted melted ( probably okay, too)
1 teaspoon vanilla
Equipment
bowl
baking sheet
baking paper
oven
wire rack
baking pan
aluminum foil
Directions
Preheat oven to 325 degrees F. Line a 13×18 inch heavy duty rimmed baking pan with nonstick foil or parchment paper;In a large bowl, stir together the butter, corn syrup, sugar, salt, vanilla and baking powder.
Add the oats and coconut and stir until thorough mixed.
Spread the mixture as thinly as you can across the baking sheet.Set in preheated oven and bake for about 20 minutes or until edges are browned.
Let cool completely on a wire rack. When cool, the cookie should be perfectly crisp. Break it into pieces.