Prepare the filling by mixing chocolate chips, mini marshmallows, and crushed graham crackers in a bowl.
Take a biscuit from the package and flatten it slightly with your fingers.
Place about one tablespoon of the filling in the center of the flattened biscuit and fold the edges around it, sealing tightly.
Heat the oil in a deep skillet or fryer to 350°F (175°C).
Carefully drop the sealed dough balls into the hot oil, a few at a time, to avoid overcrowding.
Fry each bomb for 2-3 minutes or until golden brown, turning occasionally for even browning.
Remove the bombs from the oil and place them on paper towels to drain excess oil.
Dust with powdered sugar before serving for extra sweetness and an appealing look.