Shrimp and Chorizo Stew

Thinly slice 4 cloves garlic. Cook chorizo and 2 tablespoons oil in a large saucepan over medium-high, stirring often, until chorizo begins to brown and crisp, about 4 minutes. Add sliced garlic and fennel seeds and cook, stirring constantly, until fragrant, about 1 minute. Add chickpeas, tomatoes, wine, and salt and bring to a simmer. Reduce heat to medium; cover and cook until tomatoes begin to break down, 6 to 8 minutes. Uncover; break up tomatoes with a wooden spoon. Stir in ½ cup water.

Add shrimp to pan and cook over medium, stirring often, until cooked through, 3 to 4 minutes. Remove from heat; stir in basil.

Preheat broiler with rack 6 inches from heat. Brush cut sides of baguette with remaining 2 tablespoons oil. Place baguette, cut sides up, directly on oven rack or on a baking sheet. Broil until baguette is browned and toasted, about 2 minutes. Remove from oven. Rub cut sides of baguette with remaining 1 clove garlic. Cut each baguette piece in half crosswise. Serve shrimp mixture with toasted baguette and crushed red pepper, if using.