Grease a 4-inch or 6-inch microwave-safe ramekin or bowl and set aside.
In a small mixing bowl, combine your dry ingredients and mix well. Add the rest of your ingredients and whisk together, until a batter remains.
Transfer your mug muffin batter into the greased ramekin. Microwave for 90 seconds. Remove the muffin from the microwave and use a rubber spatula to gently lift it out of the ramekin.
Slice the English muffin in half and toast it before enjoying it.
Oven Instructions
Preheat the oven to 180C/350F. Grease a 4-inch or 6-inch oven-safe ramekin.
Mix all the ingredients in a small mixing bowl. Transfer to an oven-safe dish.
Bake for 10-12 minutes, or until a skewer comes out clean from the center.
Use a rubber spatula to remove from the ramekin before slicing in half and toasting.
Notes
Leftovers: Keep in the fridge for up to 3 days or the freezer for up to 2 months.