Start by taking the refrigerated dinner rolls out of the package. Allow them to sit at room temperature for about 30 minutes to rise slightly.
In a deep frying pan or Dutch oven, heat the canola oil over medium heat to about 350°F (175°C).
Once the rolls have risen, gently stretch each roll into a doughnut shape.
Carefully place the shaped doughnuts into the hot oil. Fry them for about 2-3 minutes on each side or until golden brown.
In a mixing bowl, combine the marshmallow fluff, cream cheese, and 1 cup of powdered sugar. Whisk until smooth and creamy.
Once the doughnuts have cooled slightly, fill each doughnut with the marshmallow cream mixture.
In a small saucepan over low heat, melt the bittersweet chocolate chips with the milk, stirring until smooth.
In a shallow bowl, combine the remaining 1/4 cup of powdered sugar and crushed graham crackers. Roll each filled doughnut in the mixture to coat.
Drizzle the melted chocolate over each doughnut for added richness and visual appeal.