Little balls of tempura batter are an essential ingredient for many people when making wheat-based snacks such as okonomiyaki savory pancakes, takoyaki octopus balls and monjayaki half-cooked savory pancakes. They are also added to make other dishes rich and flavorful, in a similar way as cheese or butter is added in western cooking. While tempura "pearls" are inexpensive and widely available at grocery stores in Japan, it takes some effort to find them at a store outside Japan. But yes, they are easy to make. Using leftover batter after making tempura is one way. Below is a recipe to make tenkasu or agetama only. It makes enough to freeze for use over several months.
1 tbsp (4-5 g):
12 calories; 0.2 g protein; 0.4 g fat; 1.8 g carbohydrate; 1.7 g net carbs; 2 mg sodium (with shrimp flakes;5-7 mg with sakura ebi); 0 mg cholesterol; 0.1 g fiber
1 tbsp (4-5 g):
12 calories; 0.2 g protein; 0.4 g fat; 1.8 g carbohydrate; 1.7 g net carbs; 2 mg sodium (with shrimp flakes;5-7 mg with sakura ebi); 0 mg cholesterol; 0.1 g fiber