Preparation Steps

• Preheat oven to 375°F (190°C) and line a muffin tin with paper liners.
• In a large bowl, whisk together the flour, sugar, baking powder, and salt.
• In another bowl, whisk the egg, milk, and melted butter until combined.
• Pour the wet ingredients into the dry ingredients and stir until just combined without overmixing.
• Divide the batter evenly among the muffin cups, filling each about 2/3 full.
• To make the crumb topping, combine brown sugar, flour, cinnamon, and cold butter cubes in a bowl.
• Use a pastry cutter or your fingers to mix the topping until it resembles coarse crumbs.
• Sprinkle the crumb topping evenly over each muffin.
• Bake for 20 to 25 minutes or until a toothpick inserted into the center comes out clean.
• Allow muffins to cool in the pan for 5 minutes, then transfer to a wire rack to cool completely.