Spicy Potato Fritters with Green Chutney

Name: Spicy Potato Fritters with Green Chutney
Ingredients: 1 baking potato; 1 cup chickpea flour; 1 cup vegetable stock, canned broth or water; 1 garlic clove; 1 piece fresh ginger, 1/2 inch long, peeled and coarsely chopped; 1 Tbs. garam masala; 1 Tbs. peanut oil, plus more for frying; 1 to 3 serrano chilies, seeded and coarsely chopped; 1 tsp. sugar, or to taste; 1 yam or sweet potato; 1/2 cup water; 1/2 tsp. baking powder; 1/2 tsp. ground turmeric; 1/4 cup fresh mint leaves; 2 green onions, minced; 3 cups fresh cilantro leaves; Juice of 1/2 lime; Salt and freshly ground pepper, to taste; Salt, to taste