Step 1

Place cauliflower in a steamer over a large pot of boiling water. Steam for 15 minutes until tender. Alternatively, boil cauliflower in salted water for 10 minutes or until fork tender. Remove and drain. Cover with a lid and set aside.

Step 2

In the same pot, heat the butter over medium high heat. Sauté garlic until fragrant (about 1 minute).

Step 3

Blend cauliflower and garlic in a food processor on high setting until smooth. You may need to do this in batches of two or three, depending on the size of your processor.

Step 4

Transfer blended cauliflower into the pot with the garlic. Stir in the Parmesan cheese, sour cream and season with salt and pepper.