Step 1) Combine flour, sugar, backing powder, baking soda, and salt in a medium size mixing bowl.
Step 2) Beat eggs, buttermilk and oil in a large bowl. Add dry ingredients, mixing together until smooth.
Step 3) Preheat Belgian waffle iron. For each waffle, pour about 1 cup batter in waffle iron; spread batter to within 1/2 inch of edge. Close lid and cook until crisp and golden, about 4 minutes. Repeat with remaining batter. Serve warm topped with your favorite syrup or fresh fruit.