Loaded Savory Breakfast Muffins

Heat the vegetable oil in a medium frying pan over medium-high heat until it shimmers. Add the uncooked breakfast sausage, breaking it up into small, even pieces with a wooden spoon as it cooks. Continue to cook until the sausage is thoroughly browned and cooked through, which typically takes about 5 minutes. Incorporate the baby spinach into the pan and cook, stirring occasionally, until the spinach has completely wilted, about 2 minutes. Remove the pan from the heat and allow the sausage and spinach mixture to cool to room temperature, which should take approximately 15 minutes.

While the sausage cools, preheat your oven to 190°C (375°F) with a rack positioned in the middle. Prepare a standard 12-well muffin pan by generously coating each well with cooking spray to prevent sticking; set the pan aside. In a large mixing bowl, whisk together the all-purpose flour, baking powder, baking soda, salt, and freshly ground black pepper until thoroughly combined and aerated. Set this dry mixture aside.

In a separate medium bowl, combine the cooled, melted unsalted butter with the buttermilk and large eggs. Whisk this mixture vigorously until all ingredients are well-integrated and smooth. Pour the wet buttermilk mixture into the dry flour mixture. Using a wooden spoon or a rubber spatula, mix the ingredients until they are just combined. It is perfectly fine to have some lumps in the batter; overmixing will lead to tough muffins. Gently fold in the cooled sausage and spinach mixture, then sprinkle in the shredded sharp cheddar cheese and small-dice apple. Continue to fold just until the additional ingredients are evenly distributed throughout the batter.

Divide the prepared batter evenly among the 12 wells of your muffin pan. The wells will be quite full, which helps create a beautifully domed top for each muffin. Finish by sprinkling the finely chopped fresh chives over the top of each muffin for an aromatic garnish.

Bake the muffins in the preheated oven for 20 to 25 minutes, or until the tops are lightly golden brown and a toothpick inserted into the center of a muffin comes out clean. This indicates they are fully cooked. Once baked, remove the pan from the oven and place it on a wire rack to cool for 5 minutes. After this initial cooling, carefully run a thin knife or an offset spatula around the edges of each muffin to loosen it from the pan, then transfer the muffins directly to the wire rack to cool completely. The muffins can be served warm for the best experience or at room temperature.