Roasted Cauliflower Salad with Green Peppercorn Vinaigrette

1 small head of Cauliflower cut into medium florets
1/2 cup + 2 Tbsp EVOO
Salt and Pepper to taste

1 tsp minced shallot
1/4 cup dry white wine
1/3 cup white-wine vinegar
4 tsp. brined green peppercorns
1 tsp. Dijon mustard
1 Tbsp chopped flat leaf parsley
1 cup thinly sliced radicchio (slice to look like shredded paper, we used arugula once and it was a fine substitute)
2 cups frisee, leaves separated and torn into bite-sliced pieces

Roast the cauliflower- Heat oven to 400. In a bowl, toss Cauliflower, 2 Tbsp EVOO salt and pepper. Pour out onto a baking sheet and roast for 25 to 35 minutes turning every 10 minutes until golden brown. Let cool.

Make the peppercorn vinaigrette- Put the shallots, wine, 3 Tbsp of the vinegar and 2 Tbsp green peppercorns in a small pan and simmer off liquid until just 2 Tbsp are left. Pour into food processor (use immersion blender food processor, and one time we just just chopped the green peppercorns really fine and didn't bother with the food processor, it was fine). and the mustard and remaining 2TBSP + 1 tsp and process until smooth, add 1/2 cup oil while processor is running. Transfer to mixing bowl and add parsley and remaining chopped peppercorns..

Assemble- In large bowl combine ingredients with enough vinaigrette to lightly coat. Serve and drizzle with additional vinaigrette to taste.