Preheat oven to 250°. Line a baking sheet with parchment.
Melt unsweetened chocolate in microwave and set aside.
Spoon flour into a dry measuring cup; level with knife. Combine flour, cocoa powder and salt in a mixing bowl. Add coconut to flour mixture and toss well. Stir in melted chocolate, vanilla and condensed milk.
Drop the batter by level tablespoons 2 inches apart onto a baking sheet. Bake at 250° for 45 minutes. Cool 10 minutes on pan or rack