Stewed Garam Masala Lentils with Buttery Shrimp

Name: Stewed Garam Masala Lentils with Buttery Shrimp
Ingredients: 3 tablespoons unsalted butter; 1 large shallot, chopped; 3 cloves garlic, minced; 1 tablespoon plus 1 teaspoon finely chopped peeled fresh ginger; 2 plum tomatoes, cored and chopped; 1 1/2 teaspoons garam masala; Kosher salt and freshly ground pepper; 1 cup dried red lentils; 1 1/4 pounds peeled and deveined shrimp (about 24); 3 cups baby spinach; 2 tablespoons canned unsweetened coconut cream; 1/2 cup lightly packed fresh cilantro, chopped