In medium bowl, mix all ingredients (except marshmallow fluff and chocolate bar) until batter is smooth.
2
Cook
Divide batter between Silicone Waffle Form and microwave on high power 2–3 minutes or until toothpick inserted in center comes out clean.Let rest 1–2 minutes before inverting.
3
Assemble
Cut each waffle in half and fill with a dollop of marshmallow fluff and a piece of chocolate bar or desired filling.