Preheat the oven to 400°F. Line a rimmed baking sheet with a nonstick silicone baking mat.

Combine the flour, mayonnaise, and milk in a bowl. Using a spoon or an ice cream scoop, drop spoonfuls of the dough onto the prepared baking sheet. Bake until golden brown, 15 to 17 minutes. Transfer to a wire rack to cool slightly. Serve warm.