Curried Yogurt Dressing

1/4 cup onion finely chopped

1 clove garlic minced, or to taste

1 teaspoon ginger root finely grated

1/2 teaspoon curry powder or to taste

1 pinch salt and black pepper or to taste

1 pinch cumin ground, or to taste

2 tablespoons scallions, spring or green onions finely chopped, only green part

1/2 cup yogurt, plain

2 teaspoons lemon juice or to taste

2 tablespoons mint leaves freshly chopped