01 - Set the waffle iron to medium-high heat and allow it to preheat according to the manufacturer's recommendations.
02 - In a large mixing bowl, whisk together the flour, baking powder, baking soda, salt, cinnamon, ginger, and nutmeg until evenly combined.
03 - In a separate bowl, beat the eggs, light brown sugar, vegetable oil, buttermilk, and vanilla extract until smooth and well incorporated.
04 - Pour the wet mixture into the dry ingredients and gently mix with a whisk or spatula until just combined. Avoid overmixing to ensure fluffy waffles.
05 - Gently fold in the grated carrots, chopped nuts, and raisins if using, distributing them evenly throughout the batter.
06 - Lightly grease the hot waffle iron with non-stick spray or melted butter.
07 - Ladle sufficient batter onto the waffle iron to cover the grid. Close and cook for 4–5 minutes, or until golden brown and crisp, following the manufacturer's timing.
08 - Remove the cooked waffle and repeat the process with remaining batter. Serve warm with desired toppings such as cream cheese glaze, maple syrup, or whipped cream.