Combined sunflower seed butter, agave and vanilla in a smaller bowl and microwave for 10-15 seconds then stir until well combined.
Add the wet ingredients to the dry and combine until fully coated.
Spread mixture into a cake pan or other low edged pan and press down evenly.
Chill in the refrigerator for at least 30 minutes.
Cut into bars and wrap individually in plastic wrap.
Notes
*I don't recommend using All-Bran, it was what I had on hand. The flavor was fine, but I don't recommend the cereal for ingredient reasons. I would choose another crispy, puffed cereal of your liking.