Sous-Vide the Octopus: Using the sous-vide stick, preheat a large pot of water to 175°F.
Dry the octopus tentacles, then transfer them into a vacuum seal bag. Seal the bag, then use the vacuum pump to remove the air. Submerge the bag in the preheated water and cook for 5 hours.
Spicy Red Pepper Hummus: Add the hummus ingredients into a mini blender, blend until combined and smooth. Place in a covered dish in the fridge until ready to use.
Lemon-Herb Dressing: Add all of the dressing ingredients into a jar, place the lid on and shake until combined. Place in the fridge until ready to use.
Finish Preparations: When the octopus has finished cooking in the sous-vide bath, carefully remove the bag, and place it into a large bowl of ice water to stop the cooking process.
Remove the octopus from the bag, drain and pat dry with a paper towel. Place them in a large bowl and toss with half of the lemon-herb dressing.
Time to Grill: Preheat your charcoal or gas grill, to medium-high. I used charcoal and wood for this cook.
Place the octopus on the grill and quickly sear all sides, for about 2-4 minutes in total. Time depends on the size of the octopus and from the heat/flames from the grill.
Plate and Serve: Drag a schmear of the spicy red pepper hummus down one side of the platter. Then place the octopus down the centre and drizzle with more dressing. Add some olives, a grating of lemon zest and chopped parsley. Serve and enjoy!
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