Preheat oven to 400 degrees. Place a muffin or popover tray in the middle rack and let it heat up with the oven
While the oven is preheating, in a frying pan, cook the sausage or the filling you are going to use for the popovers. Once cooked, let it cook and dice up into kernel sized pieces
Once you have the filling ready, take out the tray from the oven carefully and grease it up with the butter. Add the filling and the cheese into the tray cups
In a separate large bowl, using a blender, blend the eggs until they become frothy. Add the flour, milk, salt and pepper and blend until mixed
Pour the batter into each tray cup until just below the rim
Place into oven and bake. Once the popovers are puffed and hold their shape, about 25 minutes, open the oven door and sprinkle a bit more cheese on top and cook until golden brown, about 10 more minutes.
Let them cool before serving. You can eat them straight or if you’d like, add some jam or drizzle a little maple syrup on top