Preheat the oven to 400 degrees F / 200ºc. Chop up the broccoli into small florets. Add to a bowl. Add the oil and spices and mix and toss well. Spread on a baking sheet. Bake at 400 degrees F / 200ºc for 20 to 30 minutes (depending on the size of the florets). Turn the sheet around after 20 mins.
Make the creamy dressing:: Blend the cashews with non dairy milk, basil and spices. taste and adjust salt, nutritional yeast and spice. Add more non dairy milk if needed. Add lemon juice or a pinch of sugar to adjust the taste if needed.
Drizzle over roasted broccoli. Garnish with red pepper flakes and serve.