caramelized onion and roasted cauliflower tart

Name: Caramelized Onion and Roasted Cauliflower Tart
Prep time: 40 min
Cook time: 40 min
Yield: 6
Cuisine: American
Ingredients: ## ROASTING THE CAULIFLOWER. PREHEAT THE OVEN TO 425. BAKE THIS FOR 15 MINUTES. TURN THE CAULIFLOWER OVER AND ROAST ANOTHER 15 MINUTES. TAKE OUT AND LET COOL; 1 small head cauliflower, clean and slice. separate into 1" slices.; 3 1/2 tablespoon(s) olive oil; 1 tablespoon(s) truffle oil (i used white truffle oil); salt and pepper to taste; ## CARAMELIZING THE ONIONS; 1 large onion (use vidalia if possible) cut in half and slice thin.; 1 1/2 tablespoon(s) good olive oil; ## TART DOUGH:; 1 1/4 cup(s) ap flour; 1 tablespoon(s) cornstarch....plus 2 more teaspoons!; 1/4 teaspoon(s) salt; 6 tablespoon(s) butter, cold,diced in; 1 egg; ## INSIDES:; 2 large eggs; 1 (7-8) ounce(s) marscapone cheese; 1/2 cup(s) whipping cream; 1/4 teaspoon(s) white pepper; pinch ground nutmeg; 1 cup(s) grated guyere cheese; 1/3 cup(s) parmesan cheese

23 Pinches 5 Photos

Sherry Blizzard

Piney Flats, TN

Updated on May 13, 2021

Georgia grown Vidalia onions are prolific...hubby couldn't stand it and had to buy a huge bag....This was an awesome recipe. Next up...... Pizza

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Just out of the oven. Smells heavenly. That caramelized onion and guyere really pack a punch.

prep time 40 Min

cook time 40 Min

method Bake

yield 6-8 serving(s)

Ingredients

ROASTING THE CAULIFLOWER. PREHEAT THE OVEN TO 425. BAKE THIS FOR 15 MINUTES. TURN THE CAULIFLOWER OVER AND ROAST ANOTHER 15 MINUTES. TAKE OUT AND LET COOL
1 small head cauliflower, clean and slice. separate into 1" slices.
3 1/2 tablespoons olive oil
1 tablespoon truffle oil (i used white truffle oil)
salt and pepper to taste
CARAMELIZING THE ONIONS
1 large onion (use vidalia if possible) cut in half and slice thin.
1 1/2 tablespoons good olive oil
TART DOUGH:
1 1/4 cups ap flour
1 tablespoon cornstarch....plus 2 more teaspoons!
1/4 teaspoon salt
6 tablespoons butter, cold,diced in
1 egg
INSIDES:
2 large eggs
1 (7-8) ounce marscapone cheese
1/2 cup whipping cream
1/4 teaspoon white pepper
pinch ground nutmeg
1 cup grated guyere cheese
1/3 cup parmesan cheese

How To Make caramelized onion and roasted cauliflower tart

Step 1

Preheat oven to 450F. Toss the cauliflower in the oil. Spread out onto a non stick baking sheet. Season with salt and pepper. Cook for 15, then flip. Cook 15 minutes more and remove from oven.

Step 2

In a good skillet, bring 1 1/2 tbps of good olive oil to a shimmer. Add thin sliced Vidalia onions, add in a pinch or two of salt and pepper and stir, stir, stir...for about 30 minutes until they turn a beautiful golden brown. Don't ignore those fronds.
Step 3

MAKE UP THAT DOUGH: I really hate working with pastry, but this was pretty harmless.
Step 4

I used a whisk: Flour, cornstarch, salt and butter. Then add in the egg. I lost my pastry blender in the move to the lower 48 and had to use a fork....gave that up quick and used my grandma's fingers to get the pea sized effect I needed.
Step 5

Smash that dough all together and roll it thin. Yes, I cheated and used plastic wrap as a medium. Transfer the dough to the tart pan and press in. Now lightly coat the dough with 1 TBSP Dijon mustard, bottom and sides.
Step 6

Layering the Stuff: After pressing in the tart dough and brushing the bottom and sides with dijon, add in the onions. Top with cauliflower.
Step 7

In a bowl, mix the eggs, marscapone, cream, white pepper, nutmeg and Guyere. Pour over the top of the tart. I had to use my hands to redistribute the cheesiness.
Step 8

Top with 1/3 cup Parmesan cheese. Bake 350F for 40 minutes.
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