In a large-sized bowl, add the mustard, red wine vinegar, Sriracha, lime juice, salt and garlic. Whisk well until combined. Slowly whisk the olive oil into the Sriracha dressing (a few drops 1 drip at a time and then a steady stream). Whisk until well combined.
Add the cabbage, broccoli, carrots, radishes and cilantro into the large bowl and toss to thoroughly coat the vegetables. Serve chilled.
Notes
This is a spicy and satisfying vegetable side. I do not shred the broccoli stems and carrots; I use a packaged mix from Trader Joe’s. If you are feeling ambitious, feel free to chop the veggies yourself.