Cauliflower and Caramelized Onion Tart

Ingredients

• 1 small head of cauliflower (about 1 pound) or 1 pound of a larger head of cauliflower, cut into 1-inch flowerets (Romanesco cauliflower, especially orange or green, would be a pretty substitute)
• 3 1/2 tablespoons olive oil
• 1 tablespoon truffle oil or a few pinches of truffle salt (optional) (see Notes below)
• 1 refrigerated pie crust or a homemade tart shell (recipe below)
• 1 large onion, halved lenghtwise and thinly sliced
• 1 tablespoon Dijon mustard
• 2 large eggs
• 1 (7- to 8- ounce) container mascarpone cheese (see Note below for suggested substitutions)
• 1/2 cup whipping cream (although any low- or full-fat milk or light cream will work as well)
• 1/4 teaspoon ground white or black pepper
• Pinch of ground nutmeg
• 1 cup grated Gruyère cheese (Swiss or Comté are great swaps)
• 1/3 cup Parmesan cheese
• 1 1/4 cups flour
• 1 tablespoon plus 2 teaspoons cornstarch
• 1/4 teaspoon salt
• 6 tablespoons butter, diced
• 1 egg

Directions

Step-by-step directions aren't available for this recipe. See the full recipe at the source →

Nutrition, whole recipe (rough)

Counts 16 of 18 ingredients. The other 2 aren't in our nutrition table and add nothing above, so the real totals are higher.

What these numbers assume: 16 portions

Ingredient	Portion assumed	kcal
Flour	1 cup (125g) all-purpose	455
Milk	1 cup (244ml) whole	149
Mascarpone	2 tbsp (28g)	120
Olive Oil	1 tbsp (14g)	119
Cheese	1 oz (28g) cheddar	113
Parmesan Cheese	1 oz (28g)	110
Butter	1 tbsp (14g)	102
Egg	1 large egg (50g)	78
Orange	1 medium (131g)	62
Broccoli	1 cup chopped (156g)	55
Cream	1 tbsp (15ml) heavy	51
Onion	1 medium (110g)	44
Nutmeg	1 tsp ground (2.2g)	12
Black Pepper	1 tsp ground (2.3g)	6
Mustard	1 tsp (5g) yellow	3
Salt	1 tsp (6g)	0
Truffle	not in our table	0
Pie Crust	not in our table	0

One typical portion per ingredient; the recipe's quantities are not counted. A rough guide only, not for medical or dietary planning.