In a small mixing bowl, whisk together the creme fraiche, mustard, vinegar and honey. Season with salt and pepper and set aside.
In a straight-sided shallow saute pan, heat the canola oil over medium-high heat. Add the Brussels sprouts; they should begin to sizzle and fry immediately. Continue to cook, rotating the Brussels sprouts on all sides, until crispy, about 5 minutes.
Drain the Brussels sprouts and toss in enough vinaigrette to dress them. Season with salt and pepper and serve.