Preheat oven to 350°F.

Grind oats in a blender or food processor to make a flour.

Melt coconut oil into liquid using stovetop or microwave.

Combine ground oats, brown sugar, cocoa powder, cinnamon, baking powder, salt, eggs, and melted coconut oil in a large bowl. Mix them together well.

Form the dough into circles on a parchment or silpat lined baking sheet.

Flatten circles slightly, and using a spoon, make indents in circles.

Spoon peanut butter OR melted chocolate into "thumbprints" created by the spoons.

Bake for 12-15 minutes.

Let cool and drizzle with more melted chocolate, if desired.