In a microwave safe bowl, melt butter and chocolate for about 1 minute. Remove and stir well. You really want to use the heat within the butter and chocolate to melt the rest of the clumps. If you microwave until it's all melted, you've overcooked the chocolate. So get a spoon and start stirring. Add 10 seconds if needed but stir well before you decide to do that.
In a bowl, add eggs, sweetener, and vanilla and blend until light and frothy.
Pour the melted butter and chocolate into the bowl in a slow stream and beat again until it is well-incorporated.
Pour about 1/4 of the mixture into a Dash Mini Waffle Maker, and cook for 7-8 minutes, or until crispy.
While they cook, make the frosting.
Place all the frosting ingredients in the bowl of a food processor and process until smooth and fluffy. You may need to add a little more cream to get the right consistency.
Pipe or spread the frosting generously in between two chaffles to make your Oreo Chaffle.
Should make two full-size Oreo Chaffles, or four mini Oreo Chaffles.
Don't overfill the waffle maker! It will make a huge mess and waste batter. Use no more than 1/4 cup of batter in a Dash Mini.
Let the waffles cool some before eating and frosting. This will allow them to crisp up.
Use room temp cream cheese and butter to make your frosting.