Toast sesame seeds about 5 minutes until golden and fragrant.
Stovetop method: Add maple syrup and salt. Cook down about 3-5 minutes until maple syrup cooks down, stirring constantly.
Pour mixture on a silpat baking mat or parchment paper that has been sprayed with cooking spray. Place a parchment paper on top (that has also been sprayed with cooking spray) and use a rolling pin to roll out evenly and flatten. Cut when mixture hardens slightly, but is still somewhat soft.
Oven method: Mix ingredients and pour on a baking sheet with double lined parchment paper, or aluminum foil with parchment paper over the top, making sure the bottom layer has a lip. Two layers are necessary because the mixture will leak under the first layer and this will protect your baking sheet. Bake at 325° for 30 minutes*. Cut when mixture hardens slightly, but is still somewhat soft.
*For the oven method: Cooking time will depend on thickness of bars. Mine were about ¼" thick.