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Fresh Tomato Au Gratin
Yield: 6-8 servings 1x
Prep: 6 hoursCook: 30 minsTotal: 6 hours 30 minutes
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Ingredients
- 3 pounds Plum-type tomatoes such as Roma, or any large variety, cut into large chunks
- 2 teaspoons salt to help remove water from tomatoes
- 3 tablespoons butter
- 2 cups chopped onions
- 1 tablespoon minced garlic
- 2 tablespoons flour
- 1 1/2 cups heavy cream
- 1/2 teaspoon kosher salt
- 1/4 teaspoon white pepper
- 1/2 teaspoon dry Colman’s mustard
- 1/2 teaspoon freshly grated nutmeg
- Few drops Tobasco sauce
- 1/2 cup basil chopped
- 8 ounces Swiss cheese, shredded and divided
- 1 1/2 cups panko bread crumbs
- 1/2 teaspoon paprika
- 3 tablespoons melted butter
Instructions
- About 4-6 hours before baking (or overnight), place the cut up tomatoes in a colander or strainer over a bowl and sprinkle generously with the salt. Stir to combine. Allow the tomatoes to drain their liquid, stirring occasionally and gently pressing down on the tomatoes (use a large spoon or a small flat bowl to press the tomatoes against the sieve but not too hard that you mash them), until the tomatoes are very well drained. Blot with a paper towel if necessary to remove extra moisture or squeeze in paper towels.
- Preheat oven to 375 degrees.
- In a medium pot, heat butter over medium high heat and sauté onions and garlic for 3 minutes.
- Reduce to medium and add flour and stir frequently for 3 more minutes.
- Microwave cream to hot but not scalding (necessary to avoid lumps). Add this to onion and flour mixture and stir with a whip to combine.
- Add salt, pepper, mustard, nutmeg and Tobasco sauce. Stir and remove from the heat.
- In a 9 inch round, 3 inch deep casserole dish, spray inside with pan spray. Then ladle a small amount of the sauce to coat bottom of pan ( about 1/3 cup).
- Then begin layering half of the tomatoes, half of the remaining sauce, half the cheese, all of the chopped basil, the other half of the tomatoes, the other half of the cheese and the rest of the sauce.
- In a small bowl, mix panko crumbs, butter and paprika and sprinkle on top of casserole.
- Bake uncovered for 30 minutes, then let rest for 15 minutes to set up before serving.
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