Potato and Cauliflower Gratin | Jill's Table

Ingredients

• 2 tbsp butter
• 1 small onion, diced
• 1 clove garlic, peeled and minced
• 2 tsp (10 ml) fresh thyme leaves
• 1 ½ lbs potatoes, peeled and cut into 1/4 -inch (.6 cm) slices
• 1 ½ lbs sweet potatoes, peeled and sliced thinly
• ½ cup grated Parmesan cheese
• ½ head of cauliflower, broken into florets
• 2 cups (500 ml) heavy cream
• sea salt and pepper to taste
• 2 cups coarse breadcrumbs
• 1 cup grated gruyere or Emmental cheese