Use thick slices of bread like brioche or challah for the best texture. Avoid oversoaking the bread to keep waffles light and crispy. For extra flavor, try adding orange zest or ground cardamom to the batter. Keep waffles warm in a low oven while cooking the rest. For dairy-free options, substitute plant-based milk and use dairy-free butter or oil for greasing. Leftover waffles can be refrigerated for up to 3 days or frozen for up to 2 months; reheat in a toaster or oven for best results.