Herby Shrimp Toasts

Name: Herby Shrimp Toasts
Ingredients: 1 (12-inch) baguette, cut into 20 thin slices; 2 tablespoons salted butter, melted; 1-inch piece fresh ginger, finely chopped (about 2 tablespoons); 1 small red onion, finely chopped; 3 tablespoons (10 grams) finely chopped fresh dill fronds, plus more for serving; 8 to 10 jumbo shrimp (about 6 ounces; 16/20s are a good size), shelled, deveined, and finely chopped; 2 tablespoons mayonnaise; 1/4 teaspoon table salt; Pinch freshly ground black pepper; Pinch chile flakes; 3 tablespoons (20 grams) grated mild yellow cheddar