Chai Oatmeal Lace Cookies

Name: Chai Oatmeal Lace Cookies
Cook time: 30 min
Total time: 30 min
Cuisine: American
Ingredients: 113 grams unsalted butter (1/2 cup / 1 stick); 225 grams brown sugar* (1 cup + 1 tablespoon packed); 16 grams all-purpose flour (2 tablespoons); 1/4 teaspoon ground cinnamon; 1/4 teaspoon kosher salt; 1 teaspoon vanilla extract; 1 egg; 160 grams old-fashioned oats** (1 1/2 cups); 25 grams candied ginger, finely chopped (2 tablespoons); 4 chai tea bags; 160 milliliters whipping cream, plus more as needed (2/3 cup); 160 grams dark chocolate (5.6 ounces, or about 1 cup); 15 grams unsalted butter, softened (1 tablespoon)