Savory Japanese Vegetable Pancakes

Name: Savory Japanese Vegetable Pancakes
Ingredients: 1/3 cup (3 fl. oz./80 ml) ketchup; 2 Tbs. vegetarian Worcestershire sauce; 2 tsp. soy sauce; 2 tsp. brown sugar; 2 cups (10 oz./315 g) all-purpose flour; 2 tsp. baking powder; 2 tsp. sugar; Sea salt and freshly ground pepper; 2 cups (16 fl. oz./500 ml) vegetable broth or vegetarian dashi; 4 eggs; 1/2 small head green cabbage, shredded (about 5 cups/15 oz./470 g); 1 cup (5 oz./140 g) shredded carrot; 1 cup (1 oz./30 g) bean sprouts; 2 green onions, white and light green portions, thinly sliced; 2 Tbs. canola oil; 1/4 cup (2 oz./60 g) mayonnaise