Use a large bowl to mix the flour, brown sugar, baking powder, and salt with a whisk.
In a separate bowl beat together the egg, almond milk, vegetable oil, and vanilla extract.
Gently fold the wet mixture into the dry ingredients, stirring only until combined; avoid overmixing.
Divide the batter into different bowls based on the number of colors you need. Stir in a few drops of food coloring to each portion until the desired shade/color is reached.
Heat your waffle maker following the manufacturer's guidelines.
If needed, apply a light coating of grease to prevent sticking.
Pour a portion of batter onto the preheated waffle maker for each waffle.
Close the lid and cook until the waffles turn golden brown (typically 3-5 minutes, depending on the appliance). Before the batter fully sets, insert a stick to help it hold its shape.