To blanch the broccoli: Boil a large pot of water, then drop broccoli florets in and stir so all the broccoli gets submerged. When the broccoli changes from a dark green to a pretty bright green (about 30 seconds), pour into a strainer in the sink, then set aside.
In a large mixing bowl combine mayonnaise, olive oil, Greek yogurt, vinegar, maple syrup, salt and peppers. Stir well.
Fold in the broccoli, grapes, green onions, 1/3 cup of the almonds and three-fourths of the bacon. Once completely combined, sprinkle the rest of the almonds and bacon on top. Cover and chill 1 hour before serving.