Arrange the oven shelf to the middle position in the oven. Preheat oven to 400ºF (204ºC). Line regular-size muffin tin with paper liners, or spray with nonstick cooking spray.
Add 2 cups Bisquick to a large mixing bowl.
Remove 2 tablespoons of Bisquick and add it to a small mixing bowl. Add chocolate mini chocolate chips (1/3 cup) and toss to coat; set aside.
In a medium bowl, whisk together milk (2/3 cup), oil (2 tablespoons), and egg (1) until just blended.
Stir in the measured, almost 2 cups of Bisquick and sugar until moistened, do not overmix. Stir in the chocolate chips with any of the Bisquick that may have dropped to the bottom of the bowl. Again, do not overmix.
Fill prepared muffin tins 2/3 full with batter.
Bake in preheat oven on arranged shelf, until golden brown, about 15-18 minutes.
Notes
Mixing: This recipe is so easy and straightforward. Just don’t mix too much.
Baking: Don’t over-bake or the muffins will be dry!
Switch The Chips: Substitute chocolate chips with white chocolate, butterscotch, or a chopped chocolate bar. Any mix-in ingredient can work such as nuts, dried cranberries, currants, and blueberries. Fresh fruit works well too, just make sure they are dried off once chopped.
Liners: You can use muffin liners too. This makes for a quick clean-up!