siggi's Icelandic-style yogurt: skyr - blended cauliflower soup

Ingredients

• 2 Tbsp olive oil
• 10 cups cauliflower, cut into medium sized pieces
• 1 cup leeks, white portion only, rinsed and sliced
• 1 cup onion, sliced
• ½ cup shallots, sliced
• 3 cloves garlic, sliced
• salt and pepper, to taste
• ½ Tbsp curry powder
• 32oz low sodium vegetable stock
• 1/2 cup siggi’s plain skyr
• lemon juice