1. Preheat the oven to 375°. Set the garlic on a sheet of foil, drizzle with the olive oil and wrap up; roast for 30 minutes, until soft.
2. Squeeze the garlic from its skin into a blender. Puree with the vinegar, water, mustard, mayonnaise, honey, Worcestershire and Tabasco; slowly add the canola oil and puree until the dressing is creamy. Season with salt and pepper and serve.