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1
To prepare the roasted plum tomatoes, preheat the oven to 475F.
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2
Spread 1/4 cup of the oil on a rimmed nonstick baking sheet that is large enough to hold the tomatoes in one layer.
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3
Place the tomatoes, garlic, and thyme sprigs on the baking sheet, season with salt, and roll the tomato halves to coat them evenly with oil, leaving them round side up.
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4
Roast, turning the baking sheet once for even cooking, until the tomatoes are shriveled and slightly charred, 35 to 40 minutes.
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5
If any of the garlic overbrowns, remove it.
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6
When the tomatoes are cool enough to handle, slip off the skins.
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7
Discard the thyme and store the tomatoes, with the pan liquid, in a covered container in the refrigerator for up to 1 week.
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8
You will have double the tomatoes you need to prepare the vinagrette; enjoy the extras in other salads or with grilled dishes.
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9
To prepare the vinaigrette, place 8 roasted tomato halves, 2 tablespoons of the tomato liquid, the basil, and the vinegar in a food processor, and pulse a few times to blend.
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10
Add the remaining 1/2 cup olive oil and pulse a few more times; the consistency should be slightly chunky.
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11
Season with salt and pepper to taste.
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12
To prepare the BLT salad, toss the lettuce and beefsteak tomatoes with the vinaigrette in a large bowl.
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13
Arrange on serving plates or in bowls, top each salad with 2 bacon strips, and serve.
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14
Variations
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15
Add crumbled cheese (goat, feta, shredded cheddar).
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16
Substitute your favorite dressing.
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17
Use the roasted tomatoes and/or vinaigrette in other salads or to marinate chicken or mild white fish such as halibut or cod.