Tomato Salad with Warm Basil Dressing

Name: Tomato Salad with Warm Basil Dressing
Ingredients: 1/2 cup extra-virgin olive oil; 1 large shallot, thinly sliced into rings; 3 garlic cloves, thinly sliced; 3/4 tsp. crushed red pepper flakes; 3 oil-packed anchovy fillets, chopped (optional); 1 cup basil leaves (purple or green); 11/2 lb. heirloom tomatoes, some sliced, some cut into wedges; 2 Tbsp. red wine vinegar; Kosher salt; 1/2 lemon; Flaky sea salt