Creamy Cauliflower Mashed “Potatoes”

Ingredients

• 8 cups cauliflower florets
• 1/4 cup unsalted butter
• 1/4 cup sour cream
• 1/4 cup parmesan cheese
• 6 each garlic cloves ((peeled))
• 1/2 cup roasted pistachios ((shelled))
• 2 tbsp chives ((chopped))
• 1/4 tsp salt
• 1 tbsp olive oil