Preheat oven to 400 degrees Fahrenheit.
Wash cauliflower then trim any exterior leaves.
Find a pot that is large enough to fit a whole head of cauliflower. Fill it with 4-6 inches of fresh water. Over high heat, bring to a boil.
Place cauliflower into boiling water. Cook for five minutes.
Remove from pot and place in a baking sheet.
Using a sharp knife make an 2” deep cut cross across the center of the cauliflower.
Place in the oven and cook for 30 minutes, or until golden around the edges.
Remove from heat.