Jamaican Peas and Rice

Name: Jamaican Peas and Rice
Ingredients: 1 cup dried red kidney beans (5.3 ounces; 150g); 3 medium cloves garlic; 1 tablespoon (9g) Diamond Crystal kosher salt; for table salt use half as much by volume or the same weight; 1 1/2 cups (355ml) coconut milk (from one 13.5-ounce/400ml) can); 1 ounce (28g) peeled fresh ginger (about one 1-inch knob), smashed (optional); 4 scallions, root ends trimmed; 5 sprigs fresh thyme; 1 whole Scotch bonnet pepper; 6 pimento (allspice) seeds; Freshly ground black pepper; 3 cups long-grain rice (1 pound 3 1/2 ounces; 550g), such as Carolina Gold