Flemish Frites Belgian Fries with Andalouse Sauce

Name: Flemish Frites - Belgian Fries with Andalouse Sauce
Ingredients: 1 cup mayonnaise; 2 tablespoons tomato paste; 2 tablespoons minced red onion; 1 tablespoon minced green bell pepper; 1 tablespoon minced red bell pepper; 1 tablespoon fresh lemon juice; 0.25 teaspoon salt; 3 pounds russet potatoes, peeled and cut into 1/4-inch strips; 4 cups olive oil for frying, or as needed; salt to taste