Place the onion in a small bowl and cover with cold water. Set aside. Place raisins and orange juice in a small pot and bring to a simmer. Turn off heat and let sit for 5 minutes. Drain.
Bring a large pot of water to boil. Add broccoli and cook for about 2 minutes until bright green. Drain and rinse with cold water.
In now-empty pot, cook bacon over medium heat until crispy. Remove bacon from pot and cool.
Whisk mayonnaise, honey and vinegar in a small bowl. Drain the onions. Place onions, carrots, seeds, broccoli, bacon and raisins in a large salad bowl. Top with mayo dressing and toss. Season to taste with sea salt.