Mix sugar and oil, beat in eggs, add orange juice, chips, mandarin oranges. Mix dry ingredients, gradually add liquid mixture, stir just until blended. Ice cream scoop batter into muffin paper lined muffin tins. Preheat oven to 375 degrees. Mix topping ingredients and sprinkle on muffin batter. Bake for 15-20 minutes until golden brown. Makes 2 dozen delicious muffins.